BIOS File Headers (Sega Mega CD)

a useful resource when dealing with bios files is to know how their headers look so when you open a binary dump you can identify the bios version bios version header compile date mega cd 1 00g (jp) sega mega drive (c)sega 1991 novmega cd boot rom 11/20 1991 17 00 1 00gmega cd boot rom november 20th 1991 5 00 am mega cd 1 00l (jp) sega mega drive (c)sega 1991 novmega cd boot rom 12/02 1991 15 20 1 00lmega cd boot rom december 2nd 1991 at 3 30 pm mega cd 1 00o (jp) sega mega drive (c)sega 1991 novmega cd boot rom 12/06 1991 10 10 1 00omega cd boot rom december 6th 1991 10 10 am mega cd 1 00p (jp) sega mega drive (c)sega 1991 novmega cd boot rom 12/17 1991 12 00 1 00pmega cd boot rom december 17th 1991 12 00 pm mega cd 1 00s (jp) sega mega drive (c)sega 1991 decmega cd boot rom 12/28 1991 os220 30 1 00smega cd boot rom december 28th 1991 8 30 pm sega wonder mega 1 00w (jp) sega mega drive (c)sega 1992 febwonder mega bootrom 02/06 1992 01 30 1 00wwonder mega boot february 6th 1992 1 30 am mega cd 1 11 (jp) sega mega drive (c)sega 1992 maymega cd boot rom 05/01 1992 02 30 1 11 mega cd boot rom may 1st 1992 2 30 am sega cd 1 00 (us) sega mega drive (c)sega 1992 julsega cd boot rom08/04 1992 03 00 1 00 sega cd boot rom august 4th 1992 3 00 am sega cd 1 10 (us) sega mega drive (c)sega 1992 octsega cd boot rom10/11 1992 18 30 1 10 sega cd boot rom november 11th 1992 6 30 pm mega cd 1 00 (e) sega mega drive (c)sega 1992 octmega cd boot rom10/27 1992 15 15 1 00 mega cd boot rom october 27th 1992 3 15 pm mega cd 2 00c (jp) sega mega drive (c)sega 1992 deccd2 boot rom 12/22 1992 14 00 2 00ccd2 boot rom december 22nd 1992 2 00 pm sega cd 2 00 (us) sega mega drive (c)sega 1993 marcd2 boot rom 03/14 1993 01 00 2 00 cd2 boot rom march 14th 1993 1 00 am mega cd 2 00 (e) sega mega drive (c)sega 1993 marcd2 boot rom 03/30 1993 12 00 2 00 cd2 boot rom march 30th 1993 12 00 pm laseractive 0 98 (jp) sega mega drive (c)sega 1993 aprmega ld boot rom 03/29 1993 17 00 0 98 mega ld boot rom april 29th 1993 5 00 pm laseractive 0 98 (us) sega mega drive (c)sega 1993 aprmega ld boot rom 03/29 1993 17 00 0 98 mega ld boot rom april 29th 1993 5 00 pm laseractive 1 04 (us) sega genesis (c)sega 1993 aprmega ld boot rom 09/22 1993 17 00 1 04 mega ld boot rom september 22nd 1993 5 00 pm sega wondermega 2 00 (jp) sega mega drive (c)sega 1993 maywondermega2 bootrom 05/27 1993 13 20 2 00 wondermega2 boot may 27th 1993 1 20 pm mega cd 2 00w (e) b1 sega mega drive (c)sega 1993 juncd2 boot rom 06/01 1993 20 00 2 00wcd2 boot rom june 1st 1993 8 00 pm sega cd 2 00w (us) sega mega drive (c)sega 1993 juncd2 boot rom 06/01 1993 20 00 2 00wcd2 boot rom june 1st 1993 8 00 pm sega cd 2 11x (us) sega mega drive (c)sega 1993 juncd2 boot rom 06/21 1993 16 00 2 11xcd2 boot rom june 21st 1993 4 00 pm sega cdx 2 21x (us) sega mega drive (c)sega 1993 sepcdx boot rom 09/07 1993 19 00 2 21xcdx boot rom september 7th 1993 7 00 pm multi mega 2 21x (eu) sega mega drive (c)sega 1993 sepcdx boot rom 09/16 1993 14 00 2 21xcdx boot rom september 16th 1993 2 00 pm jvc x'eye 2 00x (us) sega mega drive (c)sega 1993 decwondermega2 bootrom 12/27 1993 16 30 2 00 x eye boot for(mp) december 27th 1993 4 30 pm jvc x'eye 2 00 (jp) sega mega drive (c)sega 1993 decwondermega2 bootrom 12/27 1993 16 30 2 00 x eye boot for(mp) december 27th 1993 4 30 pm