Tyler -
Sorry, I am such a novice that I don't know what PTP or GTA4 means.
All -
The unit came in yesterday. So far I have used it to back up some of my wife's DVD movies using Ridata 8x DVD-R media with good success. I have also backed up my computer files on a Sony DVD+RW disk without problems. Don't have any 16x DVD-R media yet. As I continue to use the drive I will report any issues on this Forum.
Luke