DVD-RW nightmare...

[mp3ex]

I have about 20 DVD-RW's with data on them and now I need to format them and burn new data. The problem is that I cannot erase them! Have tried several programs - Prassi Primo, Nero and newest version of Stomp RecordNow and still no luck! It always ends up with an error, smth like "Command: xx Sense: xx" (with Prassi) or Stomp simply tells me that erasing failed and the disk might be scratched (which they are not) no difference if I try quick or full format. After I put them in the drive again they are not recognised as DVD-RW anymore... I have no idea how to solve this.

Writer: DVR-104, FW 1.40 (latest), DMA, Secondary slave
Aspi drivers: latest
Software: latest (Stomp)

tried White Label and unbranded Princo discs, so far wasted 6 of them...
god dang rewritables

[Thwiipp]

Its the crappy ass media your using, next time try some real branded discs, i never had problems like that with my Sony and TDK, RW discs