Very slow HD TV playback

[showson1]

Hi all,
I have Windows machine with Sage on it.
I have Placeshifter on another Windows box and the HD100 media extender.
Everything plays perfectly on both of those.

I recently got a Mac Mini, core2duo 2.0Ghz.
I have this hooked to my TV and standard video plays fine, HD movies play fine, HD videos recorded with the Hauppauge HDPVR are VERY slow.
The audio plays fine, but the video plays in slow motion.

This is the same with the client and placeshifter on the mini - both version 6.5 (downloaded today)
It is wired to the sage server, so it's not a wireless issue.

I've messed with the settings in the placeshifter configuration and can't get it to improve any.

Anyone have any idea how I can fix this issue?
It plays full screen, just in slow motion.

Thanks!

[sandor]

What GPU in the mac, and what resolution is the HD PVR recording to?

[showson1]

It's an 64MB Intel GM950 integrated video, which may be the problem.

The HDPVR is set for 720P...

[sandor]

Originally Posted by showson1

It's an 64MB Intel GM950 integrated video, which may be the problem.

The HDPVR is set for 720P...

can you share a short video clip i can test? i have both a 950 and a newer 9400 machine here... but only OTA HD content, no HD PVR.

[showson1]

Sure, I'll record a clip tonight.
720p movies (not recorded with HD-PVR) play just fine..

[sandor]

oh, and how does it play in QT or VLC? the latest versions of mplayer have been finicky.

[showson1]

I'll check QT and VLC as well..

[sandor]

any luck?