Nope, when you burn just the 98%, your game will probably refuse to work.

Are you really sure that you've got enough diskspace ? A psx image usually is ~ 730 MB in size.... and if your swapfile is on the same disk as the image you're dumping, you may have suck .

Which os are you using ? Win95/Win98/WinNT/Win2000 ? Have you previously trashed the recycler ?