Hmm,
I have just run a test with motion jpeg and the results are very odd, here are the complete results.
SATA
Motion JPEG 60% - 1280x720 = 2 Layers before frames dropped
Motion JPEG 60% - 720x576 = 4 Layers before frames dropped
DV 100% - 720x576 = 8 Layers
SCSI
Motion JPEG 60% - 1280x720 = 1 Layers before frames dropped
Motion JPEG 60% - 720x576 = 2 Layers before frames dropped
DV 100% - 720x576 = 7 Layers
Very very odd.
PDF profile on it's way asap.
Gareth