DMA
gduns,
I did have a similar problem in the past with my Yamaha burner & Microstudio and the solution was to disable the DMA on both Primary & secondary controllers.
DMA might not be the problem but I know for sure that the Yamaha burners are allergic to it! (Only with MTU products)
You might want to give it a try? Who knows...
By the way, did notice that the Plextor will sometime give me difficulties on some brand and that my Yamaha burner won't!
I guess it's the firmware that makes the difference?
Regards
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