I ran some HD content on a reletively new Catalyst server with v4 b119, 15,000RPM SCSI drive, X1600 Radeon card on newer MAC Pro and I was very disappointed with its performace. One layer would play back at 25fps somewhat smooth with occasional glitches but add a second and the performance plummetted.

Granded this was stock footage at 1920 x 1080 that I have not tried to recompress but I figured that one layer should be able to play back with no loss at all.

Is this just a matter of how I have to compress the content or is there a larger issue at hand?

Thanks
Scott Riley