Hi, I just bought a new sony 720a dvd burner and everything I burn work's for about 2 or 3 minutes and freezes when played on my dvd player. They work fine when I play them back on my computer. I've read some forum's here and found out that it maybe because my DMA is off.(Which I have no idea what that is) I use the nero infotool to check if the DMA is turned on, but it's off. I really need some help here. by the way, I have a intel p4 3.0ghz lga 775, as stated before a sony dvd burner(720a). I want to try using dvd shrink with nero as suggested here, but I don't want to waste any more of my dvd empty's. Those things add up after a while. Any kind of help would be appreciated.