DVD reading problem iguess

HI

i have Sony combo 320EE
the problem is that when i try to run the game dvd
it take alot of time to load first & when it gets loaded
and i opens the dvd drive it show no file in it

i have changed many dvd and found ame problem.

CD runs fine & burn fine.

Plz Help

Regards
Atif

Update firmware or try another drive.