Problem erasing RW on Sony/Liton RW56a

I have the infamous Sony DVD+RW DW-R56a which i first flashed with the D56a firmware. Well nero read it as good but nothing i burned on dvd-rw would read on anything, so I flashed it with the 802s/prs7. This worked for some discs but still some didnt work. I flashed it this morning with 6S07 and it looks good but i wont be able to test the readout till tonight on my xbox. The problem is that I have 5 or so DVD-RW that didnt burn correctly under the prs7 or d56a firmware that i want to erase, but My drive keeps saying that it is empty. So are my RW’s coasters and if so, Whats the point in buying RW’s?

Thanks, I will give it a try tonight.

Yo Ghosters-

Where in the world do you come up with all of this good stuff??