Thanks for your reply. There is something weird with this burner I have as it is working OK on my laptop. I tried 2x speed and got the same result (Power Calibration Area Error) - the Device tab in ImgBurn tells me it supports 6x, 8x, 12x, 16x and 18x...so I may try a few of those (but 6x definitely did not work on one try.) I do not know the maker of this DVD writer as my desktop PC was built for me, but it is older. There is no firmware update for it when using the Device Manager wizard to update. I believe it is IDE, not SATA, which indicates an older model, right? I'll keep checking things out, but I know it's my burner now. Thanks again.