i looked around for a little and didnt find anything that seemed to give me the answer i needed. so i figured id ask the pros. i tried to copy gridiron gang and a some other movies. i cant get them to copy on my computer using dvd shrink and dvd decrypter and anydvd. but they will work on my buddies computer like a charm. now dvd shrink just tells me its copyright protected and wont work. dvd decrypter tells me that... device authenticication failed reason: failed to send challenge key. im wondering....is it something to do with my burner or the software. im using the same exact setup as my buddy and he has no problems. so any answers that you can give would be greatly appreciated.