http://www.digitalfaq.com/dvdguides/...xboxbackup.htm
You cannot use just any software either. You have to use
- a Prassi engine burning software
- a non-passive FTP software
- a chip designed for your system
- a router or a crossover direct CAT5 connection
For more advanced info, go here:
http://www.xbox-scene.com
If somebody gave you regular ISO files on a disc, they screwed up.
You must create the XISO and burn that image to disc.
The XBOX does not read an ISO natively.