[QUOTE=Dialysis1;2234508]So you tried many different things except a different brand of media.
The only reliable DL media is Verbatim DVD+R DL 2.4x (MKM-001-00 dye) made in Singapore.[/QUOTE]
Got some Verbatims, tried to burn, same error came up “Semaphore timeout period has expired” before burning started. I clicked cancel then tried to burn again which, oddly enough, worked. I expected the burning to fail at the layer break and it did. In other words, the dvd burner stopped burning at exactly 50%.
Don’t know what to do, spent a lot on the memorex spindle, even more on the Verbatims, so if anyone has a solution I’m all ears.
Note: burned at 4x, not 2.4x because this was the only supported speed.