DVD not reading empty disc, HELP!

Guys,

I have a Sony burner, lately it is behaving really really like a @#@. This time, it cant read empty disc, dycrypter thinks it is no disc, 120% is the same. Eventho there was one empty disc sitting there. Wot is wrong? Please help.

FYI, reading cd is ok. Reading dvd movie, is a ok.

cheers

I have a Sony DVD DRU-710A DVD -+ 16x burner, lately it is behaving really really like a @#@. This time, it cant read empty disc, dycrypter thinks it is no disc, 120% is the same. Eventho there was one empty disc sitting there. I have been using the same type, Ritek, 8x. I even opened up the new pack, but to no avail. Wot is wrong? Please help. PLease please.

FYI, reading cd is ok. Reading dvd movie, is a ok.