Compare the online pics with your modchip...play matchup.
EvolutionX is a application that lets you play backup games off the hard drive, ftp from/to your pc, setup menu's to launch your emulators, etc etc
I've never seen a CD-R to work on Xbox yet. Use CD-RW. I've had the best sucess with Memorex CD-RW burned at 1-4X with Nero 5.5