I bought Roxio Toast Titanium 5.0 and downloaded the 5.2.1 update so I could burn some DVDs on my iMac (which is about 2 months old). I set it to record a video_ts file from one of the DVD discs that I've ripped to the hard drive. It records the files and verifies, then it says that the DVD was burned fine. The problem is that when I try it on any DVD player, the disc will not play. It won't play in a stand-alone DVD player, on the iMac nor on my PC. I checked what was burned, and all the files were recorded fine. I've gone through 6 discs with the same result. The only time it recorded anything viewable, was when I set it for "disc copy" and even then, the entire DVD was not recorded because of some error and when I popped it in the player, the portion that was recorded was very pixelated and unwatchable. Any help would be greatly appreciated.