I've backed-up Enter The Matrix with no problems (aside from regretting that I actually got Enter The Matrix, read: this game sucks).

PS2 owners of the game, by far, got the short end of the stick as it seems any use of a the "hacking" (in game cheats) causes the game to crash in the early levels.

Rent it. The game only plays for about 2 hours, and regrettably, entertains for less than that.