It is possible now to backup Xbox 360 games without necessarily
buying a chip mod. A few years ago for a person to backup Xbox 360 games
and play the backed-up games in the gaming system s/he needed to install
a mod chip. The mod chip was too expensive to buy for they were priced
almost the same as the price of the gaming system. This made it
impossible for many people to backup Xbox 360 games. The use of mod chip
was therefore inconvenient .Today a person can easily backup Xbox 360
games using some amazing game copying software.
Source:
How To Backup Xbox 360 Games