Sega cd / mega cd

[Pilotwings]

I heard people talking about a mega cd bootdisc for any region on a forum Have any of you heard of this?. I no you can do a bios mod but ive never heard of a boot disk before. Plus Is there anywhere on the net that tells you which mega cd games had problems on what region with the pro- cdx. -thanks

[RugalSizzler]

The Genesis use the rom system we have today where it checks if you have the correct Region. There is a sorta add-on that goes over the entire Genesis or Mega Drive that acts as boot disc and allows playback of Master System games also.

The same add-on should allow playback for the Cd games as well.

[j_factor]

Not a boot disc per se, but the Mega Cart (http://www.products.genny4ever.net/megacart_v1x.html) should work with all imports.

[CosmicMonkey]

I remember reading on a Sega forum ages ago about someone trying to make a boot disk; but there were a few technical hitches and no further replies to the thread.

I don't see why it's not possible, and why no-one's bothered so far? If you fix the lid switch on a Mk2, a boot disk should be perfectly possible to code. Not too sure about getting a Mk1 to boot, and then open and close the disk tray without resetting. Iirc, this is some of what the guy was having trouble with.

I used to have a Datel CD+ cart. I have no idea what revision it was but I had no compatibility problems using it with a region switched MD. This includes a long list of Japanese and US games - Sonic, Final Fight, Popful Mail etc..

This new Megacart seems to be the answer though. It appears to work on all Sega CD systems, including Multimegas/CDX and Wondermegas which the Datel carts never supported. It has loads more features too.

[blue lander]

I don't see why it's not possible, and why no-one's bothered so far? If you fix the lid switch on a Mk2, a boot disk should be perfectly possible to code. Not too sure about getting a Mk1 to boot, and then open and close the disk tray without resetting. Iirc, this is some of what the guy was having trouble with.


I mucked around with the possibility a long time ago, and while I don't remember the specifics, I don't think it's that easy. The BIOS has to decode boot instructions on the CD that tell it to jump to a specific location and start, which is different for each game. So the disk swap wouldn't work unless the boot disk it had this information for every individual Sega CD/Mega CD game. While that wouldn't be impossible, it'd require quite a bit of work.