I'm guessing it's the DMA issue, I've played videos on a 256mb machine that was slower than that one with no issues. The 100% CPU gives it away, PIO is very CPU intensive.
Choppy DVD Playback
Trying to figure out how to fix this on relative's computer. Its WinXP, AMD Duron Processor 900 Mhz with all updates to Direct_X. DVD playback is horrible--CPU goes to 100%, but I endtasked a lot of stuff--its got 256K RAM. Does it need more RAM?
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DMA Reverts to PIO should provide a solution if it's stuck in PIO mode.
You're right, I missed that you had already posted it. I wonder why Mulder hasn't tried that, since it's likely his issue.
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