Can't run Chr. of Riddicck from HDD - Help Needed!

[PSP_Forever]

Hi there!
I put Chronicles of Riddicck on my HDD (160GB Samsung Spinpoint) as usual with dvd2xbox, however, when I try to start it a black screen appears, saying the game has to be booted from the original disc.

I tried patching the .xbe files manually with CloneXB, but it still doesn't work.
I tried burning the game on a DVD+RW but my Xbox won't read (Phillips drive) the discs, yet (CD-RWs work, though).
Now, is there some new backup protection on the disc or what the hell is going on?

Would be cool if you could help me out on this one guys!
Thanks!!