backing up onto DVD9 or dual layer disks

[HANS_COBBO]

Interesting and slighty of topic here:

I've backed up Halo 2 and Rallysport Challange 2 on DVD9. I get as far as the intro on both games, then a black screen.

i use high quality media too so its not that. Wonder if a Patcher is required for DL games like the Toxic Patcher for PS2 because of the OTP and PTP differences on a original dvd9 and a copy. Also, DL checks that the games have.