DVD-R not burning on 825S


I have a Slimtype DVDRW SOSW 825S PS08 which is not writing to DVD-R. I upgraded the firmware on the Liteon site to PSX3 and this still didn’t work.

I have tried TDK DVD-R and Vebatim DVD-R.

When I have tried burning anything with DVD Decrypter it says there is a ‘I/O Error’ and there is an Invalid Field in Parameter List. Sonic RecordNOW instantly ejects the disk saying there is a writing error.

I can write the same files easily on DVD+RW.

I’ve searched the net, but nothing.