PX-716A wont erase DVD-RW

Hello and thanks for reading my thread.

I have tried to erase two different DVD-RWs (one is a verbatim 4x and the other is a sony 1x) without success.

I have used PlexTools and Nero and both report that the disc is blank after erasing, but it isn’t. I have tried a Quick erase and a full erase (took less than a minute. I think that is a little fast).

I know there is a similar post regarding the PX-712 http://club.cdfreaks.com/showthread.php?t=117667&

I was wondering if anybody has a similar problem and has found a solution?

If a solution is found, I’d like to know too.