This new problem has me stumped....

Win2000, Sony DRU500A (2.0f), Nero 5.5.10.54, Ritek GO3 -R

This has been a great combination for me for quite some time. All of a sudden I'm burning coasters. The burn starts and then fails at around 30%. At first I didn't notice that Nero was trying to burn the DVD at 2.4x speed. In the past, with the same batch of blanks, it would initially say that the burn would be at 2.4X, but then say "unable to burn at 2.4X, speed now 2.0X."

If I put different media in it so far gives the correct burn speed...2.4 for +R, +RW, 1X for -RW, etc. I checked my media with DVDINFO and it reports it as Ritek GO3 media, write speeds of 1X and 2X.

Any help very much appreciated!