[Quall999]

I think he might mean a softmod.

007:AUF, Mechassult, and Splinter Cell have hacked gamesaves that boot an external bios loader application.

You need to start these games, load the hacked save, and then you can boot to any backup. However, 007 takes about 3 minutes to start and it can get annoying.

You can do a softmod that is booted from a dashboard exploit. That would eliminate the disk swap, but can be a bitch if you do it wrong. There are some automatic installers though. They are derived from the hacked saves mentioned above. You need to load a hacked save to install it.

You also need a way to get the hacked save to the xbox dashboard. This is usually done with action replay...They put the save on the memcard and copy it over to the HDD.