H264 to m2v

Hi guys. That's my first port here.
Situation. I've got BluRay disk from client that has to be transfered to PAL DVD. I demuxed BluRay disk to mkv, then extracted video track with MPEGStreamClip. Everything looks top notch. Video is in H.264 1920x 800 format at 23.97.
Problem. I use compressor 3.0.5 to compress video to m2v file. I manually set Video Format to PAL, set Quality to 8 cbr (motion estimation BEST), then turn ON Frame Control, set Resize Filter to Best, and Rate Conversion to Best as well. Everything else is left at default.
And after transcode, I get some pretty ugly artifact in my m2v file. You can see it here - the text on the right lower part gets crazy after compression.
Please check my files. I cut out 6 seconds from the movie to upload. Here's original file:
www.rendertom.com/downloads/video_original.zip
And here's compressed m2v file:
www.rendertom.com/downloads/video_compressed.zip
This is full lengh movie and I have to retain it's duration, as audio company prepares translated audio tracks with the same lengh as original film.
If you guys could share some knowledge how to compress HD footage to PAL DVD without these artifacts, I'd be glad.
I can get rid of this artifact ONLY if I use Rate Conversion "Good" or "Fast", but then I get not smooth camera motion. on "Fast" mode, every 24th frame is duplicated, and in "Good" mode I get frame blending all the way, even on scene change, that bugs the eye.
Pleaseeeee, I have no idea how to solve this problem. Am I doing something wrong?

a gazilion thatnks to you Michael:)
But I got another quesstion - I am using MPEG Stream Clip to export ProRez file from mkv. However StreamClip do not utilize all procesors, so it's sooooo sloooo
Maybe you have some other application that could do the job? Sadly Compressor wont import mkv files
man i am completely useless - the moment I ask quesstion the solutions pops up in my head.
I just import exported H.264 file to compressor and do the transcoding to proRez...
I need vacation...

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    my OSX 10.4 CD. I also ran disk repair from the
    startup cd, and repaired permissions, then ran Yasu
    (the correct version for tiger) to clean cache files.
    The mac has been running solid now for 2 days!
    However, I have just realized today that I can no
    longer playback .M2V files in QT 7. I am not sure
    when this problem started but I do know that I used
    to be able to do this. I have FCS Installed (FCP5,
    DVDSP4, Motion 2, STP) and am running OSX 10.4.4 and
    QT 7.0.4.
    My .M2V files (encoded with BitVice 1.6) import and
    play fine in DVDSP4. Any help would be appreciated as
    I usually do rough previewing of Encoding settings in
    QT.
    Thanks,
    Matt

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