Chien,
Thanks for the suggestion, but the manual clearly says TEAC "strongly suggests" making the 512 the slave on the ide channel if a CD/DVD drive is on the channel.
But, since my problem was high CPU consumption, I suspected a problem with my IDE controller driver. Sure enough, the bus master driver as one from VIA (Janaury,2000 date), when I thought I had reverted back to the generic MS drivers.
So I just switched back to the MS default BM driver, and presto, 12x burning, about 65% cpu utilization, and surfing/other tasks with no slowdown.
Made an archive copy of my Win98SE disk in total elapsed time of 6min48secs, including leadin/leadout processing. Data alone was completed in 5min51secs for a 627MB disk. A quick calc shows that the data was burned at 12x.
Thanks for your help,
Wumpus
