backing up games on several discs?

[3sc0b4r]

I got a Xbox with LPC Mod V2.0.

For I only have a cdr/cdrw recorder, I want to backup games to cdrws and cdrs, but how can this be done when the games are bigger than 1 gig?

Is there any way to split them?

What to do if I dl a game, which I think is a more comfortable way then to rip the games myself, can I split the ISO or whatever I get to several discs?