Perfect 1:1 DVD backups

[MonkeyFish]

I've just found a new program called Xcopy9 (http://www.psptransfer.com), which claims to be able to do perfect 1:1 backups. This means no more compressing and removing special features and the like. I read the old sticky about how to copy a DVD, and I think that this makes that even more obsolete. I was wondering if anyone else had it, and if they'd come accross any errors or anything? So far I've had no problems whatsoever, no worries about copy protection or anything. I've never used anything else so easy. So for the clueless out there, give this a shot. =)