I have a Sony RDR-GX7 DVD recorder, and create DVD's from home videos of sporting events. I mainly use DVD-R discs and have tried all different brands. When I put them in my burner using Nero to copy them, I get the following errors: Backup file "Video_TS.BUP" should be identical to "Video_TS.info." DVD_Video files compliance test failed. The resulting DVD Video may be unplayable. Do you want to continue? I have also had "can only copy first data track" and it copies original within about 10 seconds, then asks for the blank disc. Anyone know much about this? Is it a problem with the burner? Or recorder? I have a friend in the US who can copy these discs fine, with a Sony burner. A friend in Canada has another brand, and gets the same errors. I have created +RW discs, which have copied fine. Please, someone must know something?