@twisted: i have fixed video recording for the vision with a simple trick, naybe this also works for the desire hd...
I did the following (media_profiles.xml)
I took the bitrate configuration from cm7 and changed all fps to 15... then i changed height and weight related to the visions display resolution / means, 720p = 600000 bitrate, 15 fps & 800 x 480
...maybe this also works for other devices
Sent from my HTC Vision using XDA