[Hendricks 266]

NOTE: Newer version, see below.

I recently downloaded a collection of console BIOSs, and with the usual personal updates I make to things like this, I ran into a problem. Some of these have odd letters on the ends that I have no idea what they stand for. In addition, some BIOSs work for regions other than what (I think) they are supposed to. Should this be reflected in their file names?

Sega Mega CD BIOS Set v1.7z

Mega CD (E) - M1 V1.00.bin
Mega CD (E) - M2 V2.00 ().bin
Mega CD (E) - M2 V2.00.bin
Mega CD (E) - M2 V2.00w.bin
Mega CD (J(E)) - M1 V1.00s.bin
Mega CD (J(UE)) - M2 V2.00 ().bin
Mega CD (J) - M1 V1.00p.bin
Sega CD (U) - M1 V1.10.bin
Sega CD (U) - M2 V2.00 (Non-Working).bin
Sega CD (U) - M2 V2.00w.bin
Sega CD (U) - M2 V2.11x (2.00).bin
Sega CD (U) - M2 V2.21.bin
X'EYE (JUE) - V2.00.bin

This post has been edited by Hendricks 266: 16 April 2009 - 06:55 PM

[Sik]

Japanese v2.00 BIOS? You just made my day =D *downloads*

But no idea. Maybe they're hacked or something? Do the BIOS screens show up the letters in the version numbers in the splash screen too?

This post has been edited by Sik: 05 January 2009 - 07:13 PM

[Hendricks 266]

That and the X'EYE BIOS were put up on Sonic Cult a while ago.

Those letters do not show up on the screen when booted.

On a side note, the last (U) BIOS is pretty interesting. Instead of waiting for the default amount of time (without presssing start) and then loading the game, it checks the disc and loads in a second.

This post has been edited by Hendricks 266: 05 January 2009 - 05:38 PM

[Diablohead]

I know that different regions have a different looking boot up interface but what was changed apart from those in each version? there is like v 1.0 1.1 and 2.0 etc.

Just some sort of behind the scenes bug fix?

[Overlord]

Mostly adjusting for new hardware, I think. Or new revisions of hardware.

[Hendricks 266]

New version.

Datel CDX Pro BIOS v1.70 (199x) [b]
Datel CDX Pro BIOS v1.8i (199x) [b]
Datel CDX Pro BIOS v1.8i (199x)
JVC X'EYE (JUE) - v2.00
Mega-CD (E) - Model 1 v1.00 (1992)
Mega-CD (E) - Model 2 v2.00 (1993) [b1]
Mega-CD (E) - Model 2 v2.00 (1993) [b]
Mega-CD (E) - Model 2 v2.00 (1993)
Mega-CD (E) - Model 2 v2.00w (1993)
Mega-CD (J(E)) - Model 1 v1.00s (1991)
Mega-CD (J(UE)) - Model 2 v2.00 (1993)
Mega-CD (J) - Model 1 v1.00p (1991)
Sega CD (U) - Model 1 v1.10 (1992)
Sega CD (U) - Model 2 v2.00 (1993) [b]
Sega CD (U) - Model 2 v2.00w (1993) [h]
Sega CD (U) - Model 2 v2.00w (1993)
Sega CD (U) - Model 2 v2.11x (1993) [b]
Sega CD (U) - Model 2 v2.11x (2.00) (1993)
Sega CDX (U) - v2.21x (1993) [b]
Sega CDX (U) - v2.21x (1993)

I've incorporated new BIOS files from another set, which also had more detailed tags for some of the files.

Here's a new link to the older version, for the curious.

[Nemesis]

You might want to add in the Laseractive bios files as well.

[Hendricks 266]

OK, thanks. Is there a Wondermega BIOS floating around anywhere?

[TheMVRules]

Yes. Search for 'propotion for sega cd owners' and you'll find it.

The v2.21 bios is the Multimega bios.

[SegaLoco]

What the fuck... seriously, why not just add this to that topic, I am the one who as been getting this together. Also, delete the Datel Pro CDX, that is a piece of crap name for a piece of crap product, it is not a BIOS. Redo your list with what you see here: http://info.sonicretro.org/Sega_cd#BIOS All of those are confirmed good dumps.