Woww...I don't know how you got here without knowing some of this stuff? DC games are either boot disk dependent or self-booting MIL-CDs. No MODS ARE REQUIRED. More information and tool for dealing with DC can be found at
http://www.megagames.com/dc/dc.shtml . Your DC must be used as the GD-ROM READER and transfer info to you PC via Braoadband or Serial Port. You'll need special hardware and software for connection and transfer. You may have to downsize or edit some music or video. You will need CDRWIN and/or Discjuggler to burn disks. To find pre-done game files I go to the GAME NEXUS.
BTW: How the hell did you do that?...." I tried to copy a dreamcast game on a pc burner but obviously didn't play on the console. "