I've been importing my high quality 1080i AVC clips from my Canon HF200 in PD7.. However when saving the final movie, even on highest bitrate (MPEG4 AVC), the quality is not near the source-quality. Lots of macroblocking results in a blurry image.
For some reason the max bitrate is like 14Mbits, is there a way of bypassing this? Perhaps AVCHD-discs have a 14Mbit limitation but I thought BD-discs could have higher bitrate, (which I've also tried using "create disc"), but it also seems to suffer from this issue.

Thanks for any help/hints

EDIT: A weird thing is, even if I decrease the output resolution (1440, or even lower), the macroblocking is still there (and it's not on the original).