i purchased a Sony Vaio K315z over a year ago, and i've been experience strange problems with the dual layer optical drive (Pioneer K14L firmware 1.10)
Basically, i can read/write all normal cd's, can write DVD's, but have lots of troubles reading them and they show up as 0 files. The other strange thing, is sometimes if i open and close the drive a number of times, it sometimes detects the CD and starts working.
I have tried both using Sonic RecordNow, and Nero 6, they burn, but cant read.
Drive was also cleaned with a cleaning cd, just incase some dirt/dust was the problem but it obviously wasnt.
Any advice appreciated,