Urgent! my dvd burner wont work properly

i try to burn dvd’s with my burner using nero 6, and it goes onto disk but it wont play in mine or my brothers ps2, or my dvd player. also, when i try playing it on my pc, it says blank disk, but it isn’t blank. i have tried using different disks and changing the write speeds but it still wont work.
any suggestions?

Welcome to the forum. In order to get help we will need more info. What burner are you using and with what media? Also, what are you copying in Nero and from what source?