DESCRIPTION OPTICAL RECORDING MEDIUM, VISIBLE INFORMATION RECORDING METHOD AND METHOD FOR USING DYE COMPOUND TECHNICAL FIELD [1] The present invention relates to an optical recording medium, visible information recording method and method for using a dye compound, more particularly, to an optical recording medium having a visible information recording layer capable of recording visible information with light such as laser beam, visible information recording method, and a method for using a dye compound. BACKGROUND ART [2] It has been known that an optical recording medium such as a CD-R and DVD- R, in which a label, on which visible information for contents of electronic data such as music titles of music data and titles identifying recorded electronic data in a recording layer is printed, is stuck on a surface opposite a recording surface for recording electronic data on a substrate. In such an optical recording medium, the titles or the like are printed on a circular label sheet by a printer or the like, and thereafter, the printed label sheet is stuck on the surface opposite the recording surface of the optical recording medium to manufacture the recording medium. [3] However, when an optical recording medium, on which a desired visible image such as titles is recorded, is produced, a printer such as an inkjet printer is required in addition to a disk drive. Accordingly, after electronic information has been recorded on a recording surface of the optical recording medium by the disk drive, it is necessary to carry out a troublesome work such that the optical recording medium is taken out of the disk drive, and a label sheet printed by a printer separately prepared as described in the above is stuck on the optical recording medium. [4] Therefore, an optical recording medium capable of displaying information by changing the contrast between a surface and background on the surface opposite the recording surface, on which information is recorded, by using a laser marker has been proposed (for example. Patent Literature 1). In this constitution, a desired image can be recorded on a label surface of the optical recording medium by means of an optical recording medium drive without providing a printer or the like, additionally. In general. in such an optical recording medium, a recording surface capable of recording electronic information and an image display surface capable of recording and displaying a visual image via a reflection layer are formed. The image display surface is constituted such that a high contrast image can be recorded by using a dye. Patent Literature 1: Japanese Patent Application Laid-Open (JP-A) No. 11-66617; Patent Literature 2: Japanese Patent Application Laid-Open (JP-A) No. 2001-342364. DISCLOSURE OF INVENTION PROBLEMS TO BE SOLVED BY THE INVENTION [5] However, there is a problem that the dye used in the image display surface tends to color-fade during storage and exposure to light, so that the image contrast is gradually lowered over time, and the visibility cannot be maintained over a long period of time. [6] The invention was made in view of the above circumstances and provides an optical recording medium which is capable of recording an image with a high contrast and sharpness, and has a superior fastness of recorded image, a method for recording visible image information, and a method of using a dye compound. MEANS FOR SOLVING THE PROBLEMS [7] The concrete means for solving the problems are as follows: <1> An optical recording medium comprising, on a substrate, a visible information recording layer including a dye compound represented by Formula (1): [8] P—fC=C-^A ♦ Formula (1) [0009] In Formula (1) above, R"', R'^, R"^, R*", R^^ and R"^ each independently represent a hydrogen atom or a monovalent substituent; R®^ and R®^ may be bonded to each other to form a 5-membered to 7-membered heterocyclic ring; A represents a substituted or unsubstituted aliphatic group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic ring group; n represents 0, 1, 2 or 3; and when n is 2 or more. plural occurrences of R*'^ may be the same or different and plural occurrences of R^*^ may be the same or different. [10] According to the optical recording medium recited in <1> above, the dye compound represented by Formula (1) is used and a visible image can be recorded with a high contrast, and the light fastness of the recorded image can effectively be increased. <2> The optical recording medium according to claim 1, wherein the dye compoimd is represented by Formula (2): [12] Formula (2) In Formula (2) above, R''^ and R*"^ each uidependently represent a hydrogen atom or a monovalent substituent; A represents a substituted or unsubstituted aliphatic group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic ring group; Z represents a group forming a 5-membered to 7-membered heterocyclic ring together with a nitrogen atom and carbon atom; n represents 0, 1, 2 or 3; and when n is 2 or more, plural occurrences of R'*^ may be the same or different and plviral occurrences of R may be the same or different. [13] <3> The optical recording medium according to claim 1 or 2, wherein the dye compound is represented by Formula (3): [14] [0015] In Formula (3) above, R"', R"', R*"^ and R" each independently represent a hydrogen atom or a monovalent substituent; A represents a substituted or unsubstituted aliphatic group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic ring group; n represents 0, 1, 2 or 3; and when n is 2 or more, plural occurrences of R**^ may be the same or different and plural occurrences of R*'^ may be the same or different. [16] According to the optical recording medium recited in <2> or <3> above, in particular, the optical recording mediimi is constituted such that the dye compound has a dye structure in which a 5-membered to 7-membered heterocyclic ring is condensed with a pyrazole ring, so that the contrast and light fastness of the recorded image can effectively be increased. Further, the dye structure having a pyrazolotriazole ring represented by Formula (3) is particularly effective. [17] <4> The optical recording medium according to claim 3, wherein R®'^ in Formula (3) is an alkyl group or an aryl group. According to the optical recording medium recited in <4> above, R®'' on the pyrazolotriazole ring is an alkyl group or aryl group, and therefore, the contrast and light fastness of recorded image can particularly effectively be increased. [18] <5> An optical recording medium comprising a visible information recording layer on a substrate, wherein the visible information recording layer is irradiated by a laser beam multiple times 6n substantially the same track to record visible information, and includes a dye compovind represented by Formula (1): [19] <6> An optical recording medium comprising a visible information recording layer on a disk-shaped substrate, wherein the visible information recording layer is irradiated by a laser beam by oscillating the laser beam multiple times along substantially the same track in a radial direction to record visible information, and includes a dye compound represented by Formula (1): [20] In the optical recording medium recited in <5> or <6> above, the characteristics required therefor are different from those required for common digital data recording as follows; namely, pits are formed by irradiation with laser beam once in the digital data recording. Accordingly, the characteristics required for the optical recording medium for common digital data recording are different from the characteristics required for the optical recording medium of the invention. In general, when pits are formed in a dye recording layer, it is important to form the pits which can provide a sufficient reflectivity and modulation factor for recognizing the pits by means of a disk drive. Accordingly, as described in the above, the use of the system in which irradiation with laser beam is performed multiple times along substantially same track, or a system in which irradiation with laser beam is performed multiple times along substantially same track by oscillating the beam in the radial direction of the optical disk, is not a usual type of usage. Further, in regular optical disks, the position for forming pits in the radial direction is fixed, and the laser beam can never sway in the radial direction of the optical disk. Furthermore, it is impossible to consider that the laser beam sways in the radial direction of the optical disk for forming pits. Thus, in the system quite different from the conventional drive system, the optical recording medium of the invention is capable of recording an image with a high contrast and sharpness, and providing a superior light fastness of recorded image. EFFECTS OF THE INVENTION [21] The invention provides an optical recording medium and visible information recording method which are capable of recording an image with a high contrast and sharpness, and which provides a recorded image with an excellent Ught fastness, and method for using a dye compound. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing an example of the layer configuration of an optical recording medium according to the invention. BEST MODE OF CARRYING OUT THE INVENTION [23] The optical recording medium according to the invention may be constituted such that the optical recording medium comprises at least one substrate and at least one visible information recording layer provided on the substrate. The optical recording medium according to the invention may preferably further comprise a digital information recording layer for recording invisible electronic information such as music data or the like. Further, the optical recording medium according to the invention may be constituted such that the optical recording medium includes other layers such as a reflection layer for reflecting light when recording, an adhesive layer or the like. [24] - Visible Information Recording Layer - The visible information recording layer is a layer which contams a dye as a main component and is capable of recording visible images (visual information) such as characters, drawings pictures and the like. The visible image means visually recognizable images, which include all of visually recognizable information such as characters (strings), pictures, drawings and the like, for example, the title of a disk, information of contents, thumbnail of contents, related pictures, ornamental pictures, copyright information, recorded date and time, recording method, recording formats, barcodes and the like. Further, "contain as a main component" means that the content of dye is 50% or more (preferably 80 % or more) relative to the total solid content in the visible information recording layer. [25] The information of characters includes user license identifying information, use period identifying information, use times identifying information, rental information, resolution identifying information, layer designating information, user identifying information, copyright owner information, copyright number information, manufacturer information, manufactured date information, sales date information, sales store or sales person information, use set number information, regional designating information, language designating information, application designating information, product user information, use number information, and the like. [26] The visible information recording layer of the invention is a layer for recording so as to visually recognize the visible image (visual information) by irradiating the layer with laser light, and contains at least one kind of dye compoimds represented by the following Formula (1) (hereinafter may be referred to as "dye according to the invention". Since the dye according to the invention is used, a visible image with a high contrast and sharpness is obtained, and the light fastness of recorded image can effectively be increased. A ' ^n [27] - Dye compound represented by Formula (1) - ,PH-c=G-)-A Formula (1) [0028] In Formula (1) above, R®^, R"^, R^^ and R*"^ each independently represent a hydrogen atom, or a monovalent substituent. The "monovalent substituent group" represented by R®', R^, R^, R", R''^ or R" may be an substitutable group. The monovalent substituent group may include, for example, an aliphatic group, an aryl group, a heterocyclic group, an acyl group, an acyloxy group, an acylamino group, an aliphatic oxy group, an aryloxy group, a heterocyclic oxy group, an aliphatic oxycarbonyl group, aryloxycarbonyl group, a heterocyclic oxycarbonyl group, a carbamoyl group, an aliphatic sulfonyl group, an aryl sulfonyl group, a heterocyclic sulfonyl group, an aliphatic sulfonyloxy group, an arylsulfonyloxy group, a heterocyclic sulfonyloxy group, a sulfamoyl group, an aliphatic sulfonamide group, an aryl sulfonamide group, a heterocyclic sulfonamide group, an amino group, an aliphatic amino group, an aryl amino group, a heterocyclic amino group, an aliphatic oxycarbonyl amino group, an aryloxycarbonyl amino group, a heterocyclic oxycarbonyl amino group, an aliphatic sulfinyl group, an aryl sulfinyl group, an aliphatic thio group, an aryl thio group, a hydroxy! group, a cyano group, a sulfo group, a carboxyl group, an aliphatic oxyamino group, an aryl oxyamino group, a carbamoyl amino group, a sulfamoyl amino group, a halogen atom, a sulfamoyl carbamoyl group, a carbamoyl sulfamoyl group, a dialiphatic oxysulfinyl group, a diaryl oxyphosphinyl group, and the like. These substituents may further substituted with other monovalent substituents. [29] Among the above, in light of the effect of the invention, it is preferable that R®', R®^, R^, R*"', R*'^ and R*"^ represent a hydrogen atom, an aliphatic group, an aryl group, an acyloxy group, an acylamino group, an aliphatic oxy group, an aliphatic sulfonyloxy group, an aryl sulfonyloxy group, an aliphatic sulfonamide group, an aryl sulfonamide group, an amino group, an aliphatic amino group, an aryl amino group, an aliphatic oxycarbonyl amino group, an aryloxycarbonyl amino group, a heterocyclic oxycarbonyl amino group, a hydroxyl group, a cyano group, a sulfo group, a carbamoyl amino group, or a sulfamoyl amino group, and, it is more preferable that these represent a hydrogen atom, an aliphatic group, an aryl group or an aliphatic oxy group. R®^ and R^ may be bonded to each other to form a 5-membered to 7-membered ring structure. [30] More preferable specific examples are as follows: R®^ is preferably an alkyl group having 1 to 12 carbon atoms. For example, methyl group, ethyl group, i-propyl group, t-but>'l group, cyclohexyl group, 2-ethylhexyl group, dodecyl group and the like. In particular, an alkyl group having 1 to 8 carbon atoms is preferable, and an alkyl group having 1 to 4 carbon atoms is more preferable. [31] R"^ is preferably an aliphatic group or an aryl group, and R®^ is preferably a hydrogen atom or an aliphatic group, more preferably a hydrogen atom. Particularly preferably, R®^ and R®^ are bonded to each other to form a ring structure. The ring structwe when a ring is formed is preferably 5-membered to 7-membered ring, and more preferably 5-membered ring. [32] R", R"^ and R^^ are preferably a hydrogen atom or an aliphatic group, and particularly preferable a hydrogen atom. In Formula (1), A represents a substituted or unsubstituted aliphatic group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocycUc group. When A has a substituent, the substituents similar to the substituent listed for the "monovalent substituent" represented by R®^- R®^ and R*'*- R*'^ may be exemplified. Preferred examples thereof include a heterocyclic group, an acyl group, an acyloxy group, an acylamino group, an aliphatic oxy group, an aryloxy group, a heterocyclic oxy group, an aliphatic oxycarbonyl group, aryloxycarbonyl group, a heterocyclic oxycarbonyl group, a carbamoyl group, an aliphatic sulfonyl group, an aryl sulfonyl group, a heterocyclic sulfonyl group, an aliphatic sulfonyloxy group, an arylsulfonyloxy group, a heterocyclic sulfonyloxy group, a sulfamoyl group, an aliphatic sulfonamide group, an aryl sulfonamide group, a heterocyclic sulfonamide group, an aliphatic oxycarbonyl amino group, an aryloxycarbonyl amino group, a heterocyclic oxycarbonyl amino group, an aliphatic sulfmyl group, an aryl sulfmyl group, a hydroxyl group, a cyano group, a carboxyl group, a sulfamoyl amino group, a halogen atom, a sulfamoyl carbamoyl group, a carbamoyl sulfamoyl group and the like. [34] As an unsbstituted aliphatic group, for example, an alkyl group having 1 to 20 carbon atoms in total, an alkenyl group having 2 to 20 carbon atoms in total and an alkynyl group having 2 to 20 carbon atoms in total are preferably exemplified. In particular, an alkyl group having 1 to 15 carbon atoms in total is preferable, and an alkyl group having 1 to 10 carbon atoms in total is particularly preferable. As a sbstituted aliphatic group, for example, a substituted alkyl group having 2 to 20 carbon atoms in total, a substituted alkenyl group having 3 to 20 carbon atoms in total and a substituted aralkyl group having 7 to 20 carbon atoms in total are preferably exemplified. Among them, a substituted alkyl group having 2 to 15 carbon atoms in total is preferable, and a substituted alkyl group having 2 to 10 carbon atoms in total is particularly preferable. [35] An aryl group represented by A may be unsubstituted or substituted, or ring- condensed. For example, phenyl group, 4-methoxy phenyl group, 4-dimethylamino group and the like are exemplified. In particular, an aryl group having 6 to 30 carbon atoms in total is preferable, an aryl group having 6 to 20 carbon atoms in total is more preferable, an aryl group having 6 to 15 carbon atoms in total is further preferable, and an aryl group having 6 to 12 carbon atoms in total is most preferable. [36] A heterocyclic group represented by A may be unsubstituted or substituted, or ring-condensed. A 5-membered to 7-membered substituted or imsubstituted heterocyclic group having 2 to 30 carbon atoms in total is preferred. Among them, A is preferably heterocycles referred to as acidic nuclei in the technical area of cyanine dyes and oxonole dyes. The acidic nuclei are described m "The theory of the Photographic Process", edited by James, 4th Edition, pp.198, published by McMillan Co., 1977. More specifically, pyrazole-5-one, prazolidine-3,5-dione, imidazoline-5-one, hydantoin, 2 or 4-thiohydantoin, 2-iminooxazolidine-4-one, 2-oxazoline-5-one, 2-thiooxazoline-2,4-dione, isorhodanine, rhodanine, thiophene-3-one, thiophene-3-one-1,1-dioxide, indoline-2-one, indoline-3-one, 2-oxoindazolivmi, 5,7-dioxo-6,7-dihydrothiazolo[3,2-a]pyrimidine, 3,4- dihydroisoquinoline-4-one, l,3-dioxane-4,6-dione (for example, Meldrum's acid or the like), barbituric acid, 2-thiobarbituric acid. coumarin-2,4-dione, indazoline-2-one, pyrido[l,2-a]pyrimidine-l,3-dione, pyrazolo[l,5-b]quinazolone, pyrazolopyridone, nuclei such as 5-membered or 6-membered carbon rings (for example, hexane-l,3-dione, pentane-l,3-dione, indane-l,3-dione, or the like), each of which may be substituted, are exemplified. Pyrazole-5-one, barbituric acid, 2-thiobarbituric acid, l,3-dioxane-4,6- dione are preferred. Further, moieties of compounds referred to as color couples in the area of the silver salt photographic technology are preferred. For example, pyrazolones, lH-imidazo[l,2-b]pyrazoles, lH-pyrazolo[5-l- c][l,2,4]triazoles, lH-pyrazolo[l,5-b][l,2,4]triazoles and the like are exemplified. In particular, as A, 5-membered or 7-membered heterocyclic groups having 2 to 20 carbon atoms in total are more preferable. [0037] Among the groups in the above, A is preferably a group represented by the following formulae (A-1) to (A14). (A-5) (A-8) (A-7) (A-6) 23 ,26 R R «33 y-oR'^ -R R R29 R30 a32 (A-9) /-Q(A-n) (A-10) >40 r a ,35 ^38 Ar36 (A-12) (A-13) (A-14) >48 >45 V-N lis ,43 T>-r & [0038] In the above (A-1) to (A 14), R'' to R'*^ each independently represent a hydrogen atom or a substituent. Here, the substituent is the group recited in the paragraph "monovalent substituent" as described in the above, and may be any substitutable group. Preferred substituents include an aliphatic group, an aryl group, a heterocyclic group, an acyl group, an acylamino group, an aliphatic oxy group, an aliphatic oxycarbonyl group, a carbamoyl group, a sulfamoyl group, an aliphatic sulfonamide group, an aryl sulfonamide group, an amino group, an aliphatic amino group, a hydroxyl group, a cyano group, a sulfo group and a carboxyl group. [39] Adjacent two groups in R® to R^^ R^^ to R'^ R^^ to R^^ and R^^ and R^' and R^^ R^^ and R^^ and R^' and and R^^ and R^^ may be bonded to each other insofar as they can be bonded to each other to form a 5-membered to 7 membered hydrocarbon ring or heterocyclic ring. [40] In addition, Q' in (A-9), Q^ in (A-11) and Q^ in (A-14) each represent a non-metal atomic group necessary for forming a 5-membered to 7-membered ring. [41] Among the above groups, in view of the effect of the invention, A preferably represents (A-10), (A-11) or (A-14), and particularly preferably represents (A-11). [42] (Al-1 to A14-25) which are specific examples of A are shown below, but the invention is not limited to these examples: A4-1 A6-1 \=N A8-1 C3H7 •H^CI A5-2 Cl^ HO C4H9 A9-1 A8-2 C2H5 CpHs CN HN o. 'C2H5 6 .C4H9(t) \^C4Hg(t) .C4H9(t) 6 A10-6 HgCOCHN^N'^ A10-5 6 A10-8 A10-7 .C2H5 .C4H9(t) *n.CON(CH3)2 HzN C2H5 N^N A10-9 A10-13 ,CH3 ho^n C3H7 A10-17 H HO^N A A10-10 ho^n CIv^^Cl CI A10-14 .COOCzHs ho^n ,CH3 r^N A11-1 CI A10-11 •s,C4H9(t) ho^n A10-15 A11-2 .OC2H5 H3C A10-12 .CH3 HO^ NHCOCsHrli) 6 A10-16 COOC2H5 HO^N A A11-3 ,C4H9(t) h-N^N CHj .C4H9(t) .C4H9(t) -C4H9(t) HN N =N HN^N' ■N H3C AHgCt) II < N HN^ N HjC^^N V CH3 O ^NH O O A11-11 A11-9 A11-8 A11-10 .C4H9(t) ■CH, '.^OCzHs T ® hn^n- ,j5 HN I HNJ T o \\-CH: \=N o V O^N^O A11-12 ^ C4H9(t) HN Vo, NH-S m N -N o V p A11-13 .C4H9(t) N N I V^N nhA, A11-14 HN .C4H9(t) .N NH A11-15 HN N H HsC^ Aii-ie AHglt) HN N N=I CH3 .N. '=0=0 CH3 A11-18 ^ OC2H5 HN N HCOCaHg N=I.CH3 A11-19 .C4H9{t) hn^n- ^CH3 oris A14-1 HO HO H3C, -N /=-nK) CI' M K N H3C , H COOC2H5 A14-6 HO V A14-8 HO CH3 A14-7 OH O CH3 A14-9 HO C2H5 -N >=S 0 C2H5 A14-10 HO CH2COOC3H7 -IM >=0 I fcH3 A14-11 A14-12 OH A14-13 A14-14 C4H9(t) HO OH .C2H5 -N C2H5 A14-15 o A14-17 OH 02 A14-16 O '-yb HO A14-24 OH C2H5 OH [48] In Formula (1), n represents 0,1,2 or 3. When n is 2 or more, plural occurrences of R**^ may be the same or different and plural occurrences of R''^ may be the same or different. In light of fastness, n is preferablyO, 1 or 2, and more preferably 0 or 1. [49] In Formula (1), specific examples (BlO-1 to BlO-8) of groups which have a pyrazoline ring as a basic structure to which R"' is bonded are shown. However, the invention is not limited to these examples. BIO-1 B10-2 B10-4 B10-3 .C4H9(t) U y^C^H^d) '.ON 6 B10-7 B10-6 B10-5 BlO-8 .C2H5 ,CN ,C4H9(t) y< JyCH3 w CzHs HN HN N^N \.C0N(CH3)2 HN-V^ H3 [0051] In Formula (1), it is particularly preferable that R®^ is an alkyl group having 1 to 4 carbon atoms, R®^ and R^ are bonded to each other to form a 5-membered to 7-membered ring, R''^ is a hydrogen atom, R''^ is a hydrogen atom, R''^ is a hydrogen atom, A is (A-10), (A-11) or (A-14), and n is 0 or 1. [52] The dye compound represented by Formula (1) may have either a symmetrical skeleton structure or asymmetrical skeleton structure with respect to a methine group at the center of the dye, but an azole ring represented by A has the same azole skeleton structure as the azole ring (pyrazoline ring) to which R®' is bonded, is preferred in light of fastness. [53] - Dye Compound represented by Formula (2) - Among the dye compounds represented by Formula (1), the dye compounds represented by Formula (2) below are more preferable. A [54] [55] In Formula (2), R®', R", R''^ and R" each independently represent a hydrogen atom, or a monovalent substituent. A represents a substituted or unsubstituted aliphatic group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic ring group, n represents 0, 1, 2 or 3. When n is 2 or more, plural occurrences of R may be the same or different and plural occurrences of R may be the same or different. Here, in Formula (2), R''^ and R''^ A and n are the same as R®', R"', R**^ and R''^ A and n in Formula (1) as described above, and preferred embodiments thereof are the same as those. [56] In Formula (2), Z represents a group forming a 5-membered to 7-membered heterocyclic ring together with a nitrogen atom or carbon atom. [57] "The 5-membered to 7-membered heterocyclic ring" is a heterocyclic ring formed by a nitrogen atom and carbon atom which constitute the 2-pyrazoline ring represented by Formula (2), and Z. For example, a 5-membered ring such as 1, 2, 4-triazole ring and imidazole ring, a 6-membered ring such as triazine ring, pyrimidine ring and 1, 3- diazacyclohexane ring, and a 7-membered ring such as 1,3-diazacycloheptane are preferable, and 1,2,4-triazole ring is more preferable. "The 5-membered to 7-membered heterocyclic ring" may be unsubstituted or substituted. When substituted, the ring may be substituted with substituents similar to those enumerated in the paragraph of "monovalent substituent" represented by R®' to R®^ or the like in Formula (1). [59] Hereinafter, in Formula (2), specific examples (Bll-1 - Bll-19) of the groups which have a 5-membered to 7-membered heterocyclic ring including 2-pyrazoline ring, to which R®' is bonded, and Z, as a basic structure are enumerated. However, the invention is not limited to these examples. [0060] B11-6 B11-4 B11-5 ^NH B11-10 B11-8 AH9(t) n B11-9 \=N nV HsC^ N" N HaC^N 0 NVCHs B11-18 U 0^0 IHCOCJHB CHi B11-15 ,CH3 B11-19 ■C^Had) S" O^N. [0061] Further, in the dye compounds represented by Formula (2), embodiments in which R®' is an alkyl group having 1 to 8 carbon atoms, the hererocyclic ring formed together with Z, a nitrogen atom and carbon atom is a 5-membered ring, R'*^ and R*'^ are a hydrogen atom, and n is 0 or 1 are preferable, in particular, embodiments in which R ^^ is an alkyl group having 1 to 4 carbon atoms, the hererocyclic ring formed together with Z, a nitrogen atom and carbon atom is 1,2,4-triazole ring, R*'', R*'^ and R*'^ are hydrogen atoms, and n is 0 or L are more preferable Furthermore, in light of improving fastQess, it is particularly preferable that in the dye compound represented by Formula (2), the azole ring represented by A has the same azole skeleton structure as the azole ring (pyrazoline ring) to which R®' is bonded. [62] - Dye Compound represented by Formula (3) Among the dye compounds represented by Formula (2), the dye compounds represented by Formula (3) below are most preferable. fG=C-)—A 'n Form\ila (3) [64] In Formula (3), R^, R*'^ and R''^ each independently represent a hydrogen atom, or a monovalent substituent. A represents a substituted or unsubstituted aliphatic group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic ring group, n represents 0, 1, 2 or 3. n is 2 or more, plural occurrences of R''^ may be the same or different and plural occurrences of R*^^ may be the same or different. Here, in Formula (3), R*"', R''^ and R", A and n are the same as R''', R*"^ and R", A and n in Formula (1) as described above, and preferred embodiments thereof are the same as those. [65] In Formula (3), R"^ represents a hydrogen atom, or a monovalent substituent. The monovalent substituents represented by R^ may be any substitutable groups, and substituents sunilar to those enumerated in the paragraphs of "monovalent substituent" represented by R®' to R^ and R*'* to R*'^ as described above can be enumerated. The substituents may be unsubstituted, or further substituted with substituents enumerated in the paragraph of "monovalent substituent" represented by R®' to R®^ or the like in Formula (1), preferably with an aliphatic group, aryl group, or heterocyclic group, more preferably, an alkyl group or aryl group. [66] The aliphatic groups represented by R®"^ may be unsubstituted or substituted, and include an alkyl group, alkenyl group and the like. The unsubstituted or substituted alkyl group is preferably an alkyl group having 1 to 25 carbon atoms, for example, i-propyl group, 2-methyl-2-acetylaminoehyl group, 2- propanoyl aminopropyl group and the like are exemplified. In particular, an alkyl group having 2 to 25 carbon atoms is preferable, and an alkyl group having 2 to 20 carbon atoms is particularly preferable. [67] The aryl groups represented by R^"^ may be unsubstituted or substituted, and are preferably an aryl group having 6 to 30 carbon atoms, and more preferably an aryl group having 6 to 20 carbon atoms, and for example, 4-butanoyl aminophenyl group, 4-butane sulfonamide phenyl group, 4-nitrophenyl group and the like are preferably exemplified. [68] The heterocyclic group represented by R®"^ may be xmsubstituted or substituted, and for example, 5-pyrimidil group and the like are preferably exemplified. [69] Further, in the dye compounds represented by Formula (3), embodiments in which R®' is an alkyl group having 1 to 8 carbon atoms, R** is an alkyl group, or aryl group, R*'' is a hydrogen atom, R*'^ is a hydrogen atom, R''^ is a hydrogen atom, and n is 0 or 1 are preferable, and, in particular, embodiments in which R is an alkyl group having 1 to 4 carbon atoms, R®^is an alkyl group having 1 to 20 carbon atoms, or an aryl group having 6 to 20 carbon atoms, R''', R*'^ and R*^^ are hydrogen atoms, and n is 0 or 1, are more preferable Furthermore, in light of improving fastness, it is particularly preferable that in the dye compound represented by Formula (3), the azole ring represented by A has the same azole skeleton structure as the azole ring (pyrazoline ring) to which R®' is bonded. In the dye compounds represented by Formulae (1) to (3), when the dye compound contains an anion (when a proton is released from A), a cation which forms a pair therewith (counter ion) is preferably the cationic part in the compounds represented by the Formula (I), (II) or (III) as described in Japanese Patent Application Laid-Open (JP-A) No. 10-109475. [71] Hereinafter, specific examples of the dye compounds (exemplary compounds M-1 - M-52, T-1 - T-52, P-1 - P-52, and H-1 - H30) represented by Formulae (1) - (3) are shown. However, the invention is not limited thereto. The numbers listed in the colirams of the structural formula A and the structural formula B in the exemplary compounds show respectively, the number of the specific examples represented by A as described above, and the number of the specific examples of the groups which have a 5-membered to 7-membered heterocyclic ring having a pyrazole ring or 2-pyrazoline ring, which R'' is bonded, and Z, as a basic structure. Exemplary Compound Structural Formula B Structural Formula A Exemplary Compound Structural Formula B Structural Formula A M-1 BIO-1 All -7 M-2 BlO-2 All -7 M-3 BIO-7 All -7 M-4 Bll -1 All -7 M-5 Bll -3 All -7 M-6 Bll-5 All-7 M-7 Bll -6 All -7 M-8 Bll -7 All -7 M-9 Bll -8 All -7 M-IO Bll -15 All-7 M-11 Bll -7 Al-1 M- 12 Bll -7 A2-3 M-13 Bll -7 A3-1 M-14 Bll -7 A4-2 M-15 Bll -7 A5-2 M-16 Bll -7 A6-1 M-17 Bll -7 A7-1 M-18 Bll -7 A8-2 M-19 Bll -7 A9-1 M-20 Bll -7 AlO-2 M-21 Bll -7 AlO-9 M-22 Bll -7 AlO- 10 M-23 Bll -7 AlO-12 M-24 Bll -7 All -1 M-25 Bll -7 All -8 M-26 Bll -7 All -11 M-27 Bll -7 All -15 M-28 Bll -7 A14-3 M-29 Bll -7 A14-7 M-30 Bll -7 A14-8 M-31 Bll -7 A14-9 M-32 Bll -7 A14-12 M.33 Bll -7 A14-14 M-34 Bll -7 A14-21 M-35 Bll -5 AlO-9 M-36 Bll-5 AlO-10 M-37 Bll -5 AlO-12 M-38 Bll-5 AlO-15 M-39 Bll -5 All-3 M-40 Bll-5 All-5 M-41 Bll-5 A14-4 M-42 Bll-5 A14-9 M-43 Bll -5 A14-10 M-44 Bll-5 A14-21 M-45 BIO-2 AlO-2 M-46 Bll-8 All -8 M-47 Bll-12 All-12 M-48 Bll -6 All-6 M-49 Bll-10 All -10 M-50 Bll -11 All-11 M-51 Bll -15 All-15 M-52 Bll -13 All -13 Exemplary Structural Structural Exemplary Structural Structural Compound Formula B Formula A Compound Formula B Formula A T-1 BlO-1 All -7 T-2 BIO-2 All -7 T-3 BIO-7 All -7 T-4 Bll-1 All -7 T-5 Bll -3 All -7 T-6 Bll -5 All -7 T-7 Bll -6 All -7 T-8 Bll-7 All -7 T-9 Bll -8 All -7 T-10 Bll -15 All -7 T-11 Bll-7 A1 -1 T-12 Bll-7 A2-3 T-13 Bll -7 A3-1 T-14 Bll-7 A4-2 T-15 Bll-7 A5-2 T-16 Bll-7 A6-1 T-17 Bll -7 A7-1 T-18 Bll-7 A8-2 T-19 Bll-7 A9-1 T-20 Bll-7 AlO-2 T-21 Bll-7 AlO-9 T-22 Bll-7 AlO-10 T-23 Bll-7 AlO-12 T-24 Bll-7 All -1 T-25 Bll-7 All-8 T-26 Bll-7 All -11 T-27 Bll-7 All-15 T-28 Bll-7 A14-3 T-29 Bll-7 A14-7 T-30 Bll-7 A14-8 T-31 Bll-7 A14-9 T-32 Bll-7 A14-12 T-33 Bll-7 A14-14 T-34 Bll-7 A14-21 T-35 Bll -5 AlO-9 T-36 Bll -5 AlO-10 T-37 Bll -5 AlO -12 T-38 Bll -5 AlO -15 T-39 Bll -5 All -3 T-40 Bll -5 All-5 T-41 Bll -5 A14-4 T-42 Bll -5 A14-9 T-43 Bll -5 A14-11 T-44 Bll -5 A14-21 T-45 BIO-2 AlO-2 T-46 Bll -8 All-8 T-47 Bll-12 All-12 T-48 Bll -6 All-6 T-49 Bll -10 All-10 T-50 Bll-11 All -11 T-51 Bll -15 All -15 T-52 Bll -13 All -13 Exemplary Structural Structural Exemplary Structural Structural Compound Formula B Formula A Compound Formula B Formula A P-1 BIO-1 All -7 P-2 BlO-2 All -7 P-3 BlO-7 All -7 P-4 Bll -1 All -7 P-5 Bll -3 All -7 P-6 Bll-5 All-7 P-7 Bll -6 All -7 P-8 Bll -7 All -7 P-9 Bll -8 All -7 P-10 Bll -15 All -7 P-11 Bll -7 A1 -1 P-12 Bll-7 A2-3 P-13 Bll-7 A3-1 P-14 Bll -7 A4-2 P-15 Bll -7 A5-2 P-16 Bll -7 A6-1 P-17 Bll -7 A7-1 P-18 Bll -7 A8-2 P-19 Bll -7 A9-1 P-20 Bll -7 AlO-2 P-21 Bll -7 AlO-9 P-22 Bll-7 AlO-lO P-23 Bll -7 AlO-12 P-24 Bll -7 All-1 P-25 Bll -7 All -8 P-26 Bll -7 All-11 P-27 Bll -7 All-15 P-28 Bll -7 A14-3 P-29 Bll -7 A14-7 P-30 Bll -7 A14-8 P-31 Bll -7 A14-9 P-32 Bll -7 A14-12 P-33 Bll -7 A14-14 P-34 Bll -7 A14-21 P-35 Bll -5 AlO-9 P-36 Bll-5 AlO-10 P-37 Bll -5 AlO-12 P-38 Bll-5 AlO-15 P-39 Bll -5 All -3 P-40 Bll-5 All -5 P-41 Bll -5 A14-4 P-42 Bll-5 A14-9 P-43 Bll-5 A14-11 P-44 Bll-5 A14-21 P-45 BIO-2 AlO-2 P-46 Bll -8 All -8 P-47 Bll -12 All -12 P-48 Bll -6 All -6 P-49 Bll -10 All-10 P-50 Bll -11 All -11 P-51 Bll -15 All-15 P-52 Bll-13 Bll-13 H-1 H.2 H-3 0 CH3 A11-7 B11-; H-e H-4 j All-7 B11-7 mi c A11-5 D n-D CH3 1 A11-7 B11-/ H-5 CH3 CH3 A11-5 H-10 B11-15 1 B11-15 H-11 CH, =—A11-15 H-8 B11-5 1- B11-5 H-9 CH, H-7 B11-5 = B11-15=^ A11-15 B11-15 n-16 CH3 CH3 CH3 A14-8 B11-7 A14-4 B11-7 A10-10 H-17 B11-7|=i-[AiPo H-20 CH3 H-19 H-18 CH, CH, CH, BII.7 =i- A10-8 A14-12 B11-7 811-7 f=l-(A10-12 H-22 H-21 HgC^ ifi N'^N mfg- fVNHl H-23 43 wherein in (A-1) to (A-14), R^ to R"*^ each independently represent a hydrogen atom or a substituent; and Q' in (A-9), Q^ in (A-11) and Q^ in (A-14) each independently represent a non-metal atomic group necessary for forming 5-membered to 7-membered rings. 16. The optical recording medium according to claim 3, wherein A is an azole ring and the azole ring represented by A has the same azole skeleton structure as a pyrazoline ring to which R''* is bonded. 17. The optical recording medium according to claim 1, wherein the optical recording medium comprises the visible information recording layer, a digital information recording layer for recording coded information, and two substrates sandwiching both the visible information recording layer and the digital information recording layer therebetween.