When I start burning something, the speed starts at 30MB/sec but keeps on dropping and eventually drops to 2MB/sec after a few mins. I tried setting it to DMA mode but when I click on "Advanced settings" on a channel, there's no devices listed:
http://img137.imageshack.us/img137/8474/sasdtm1.jpg
also, when I'm burning something, my whole pc is also slowed down.
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