I tested with Media Player Classic Home Cinema, and there is no "resume" judder with this player. Is there a way to adjust PowerDVDs read ahead buffer?

Hi,
there is no such option in PowerDVD.

if you encounter technical issues with PowerDVD please feel free to contact our technical support team.

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Michael Technical Support

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I had an open support case for 9 days now, and so far they haven't been able to tell me anything except upgrade the software (which didn't help), upgrade the firmware of the drive (which already is upgraded to newest firmware). The issue is centered around drive spin down, but this hasn't been accepted or commented on at all for that matter. I must admit I don't have very high hopes of this getting resolved at all with the current pace

Everything works swell until the movie is paused long enough for the drive to spin down. After resuming playback the movie stutters for a short while, until the spin up is complete, then the rest of the movie plays fine. I was looking for a way to make PowerDVD behave like a normal bluray player, and simply resume playback I tried Media Player Classic Home Cinema (which does not support bluray java), and I get a nonstutter resume after drive playback, so I am concluding that my setup is capable of proper playback. If only there was some way of PowerDVD reading a few seconds ahead, so it could use a memory/harddrive buffer, when the drive was spinning up and then switch back. From what I gathered from browsing around the forum, a few others had the same issue as I am having. I am open to any kind of solution that would make the jerkiness disappear after a bathroom break. Even brief stuttering after resume of playback really ruins the movie illusion for me.

I managed to solve the problem by installing a German product called cd-bremse, which enabled me to increase the spindown time to 20+ minutes.