The model No. is SH-M522C

It used to detect and Play all available video and game DVDs till few months back but suddenly stop playing them now. Just the CDs get played now.

Nothing appears...... no messages........just blank..... if i open explorer nothing is there.

I've tried inserting a DVD and opening and trying to open the disk manually.... but it didn't worked.

It is meant to handle DVD ROM only & not DVD RAM

I'm using Nero 6 bundled with it.. but it seems to be immaterial in terms of DVD handling