Compressor is breaking up video- Help!

I'm in a situation where we have serious deadlines... and the exported video from Compressor is unacceptable.
I am importing video AVCHD video, which is interlaced, into Final Cut from a Sony HDR-S11. Here are my settings:
Sequence Preset: Apple ProRes 422 (HQ) 1440x1080 30p 48Hz
Capture Present: HDV-Apple ProRes 422 (HQ)
I am also importing TIFF images which are 2-3mb in size and of varying size ratios. I am dissolving in between TIFFs, video etc. It's a straightforward documentary.
I have exported the whole thing into a self-contained QuickTime Movie using "Current Settings". This video looks fine.
My settings for Compressor are:
VIDEO:
H.264
Key Frames: Automatic
Frame Reordering: Checked
Data Rate: 464 kbits/sec, Optimized for: Streaming
Best Quality
720x405
AUDIO:
AAC
96Khz
Best
Filters:
Deinterlace (Algorithm Odd)
Watermark
Now... the compressed final product looks okay until I reach the section with TIFF's. It's as though sync is lost. The picture begins to break up, flicker and flash, until it "stabilizes" again. It doesn't happen with all the pics, but just a few of them.
Does anyone have any clue what I can do to fix this?? The killer for me is that it takes Compressor about 7 hours to export one 27 minute video. Ugh. That's a day of waiting to see if changing this or that will fix this. And since I'm stabbing in the dark, this could take days.... and I just don't have that.
Thanks for reading this far!

marysplacestudio wrote:
I'll give this a whirl (I'm under the impression that Frame Controls adds a lot more time to exports?)
Yes, which was why I recommended the Better setting rather than Best. You can find out how to speed up Compressor here:
http://www.digitalrebellion.com/blog/posts/usingcompressor_with_multiplecores.html
I'm trying to keep my bitrate low so that viewers can stream the video without it constantly buffering. I should probably be lower, but the quality suffers too much.
It's difficult to balance video quality and bitrate. I'd recommend 1000kbps minimum for that frame size. I would imagine the vast majority of your visitors would have a connection above 1Mbps.

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post your Final Cut issues in the Final Cut forum
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