37ede13b   
   XPost: alt.sega.genesis   
   From: 8bitwizard#fanboy.net@127.0.0.1   
      
   In article ,   
    Kendrick Kerwin Chua  wrote:   
      
   > No Sega CD unit has a writable ROM chip. The way to put an updated or   
   > modified bios in your unit is to write it to a compatible chip and replace   
   > it on the board, which is impractical for most people. This is especially   
   > impratcial on the CDX, which has all tiny SMD components.   
      
   FWIW, I have a model 1 Sega CD (and a couple of Laseractive modules)   
   that had a socketed EPROM. But you still need a 40-pin programmer.   
      
   Anyhow, I see no point in putting a model 2 bios on a model 1 unit. The   
   problem is that it could expect slightly different hardware. But putting   
   different region bios can actually be useful... if you can patch it to   
   not check the console region first.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)