I CANNOT export a movie in CS4, that was simple in CS3

Question

Recently upgraded from CS3, and have run into an absolute brick wall - CS4 will not allow me to export a movie. It opens Media Encoder, and I run the queue, and after about 30 seconds it comes back with an error log saying "Error Compiling Movie: Unknown Error" That is NOT a useful error message.
I have tried Quicktime with a number of different codecs, including "none", I have tried H264.
All I want is an uncompressed mov file that I can continue working with outside of Premiere / Adobe.
There are no blank portions in the video.
Error log (including all the different attempts) follows:
- Source File: /Users/slees/Library/Caches/TemporaryItems/Gifkins_1_1.prproj
- Output File: /Users/slees/Desktop/Sequence 04b.mov
- Preset Used: Custom
- Video: 720x576, 25 [fps], Lower, Quality 100
- Audio: 48000 Hz, Stereo, 16 bit
- Bitrate: Video
- Encoding Time: 00:00:42
Sun Feb 15 20:27:48 2009 : Encoding Failed
Error compiling movie.
Unknown error.
- Source File: /Users/slees/Library/Caches/TemporaryItems/Gifkins_1_2.prproj
- Output File: /Users/slees/Desktop/Sequence 04b.mov
- Preset Used: Custom
- Video: 720x576, 25 [fps], Lower, Quality 100
- Audio: 48000 Hz, Stereo, 16 bit
- Bitrate: DV - PAL
- Encoding Time: 00:00:10
Sun Feb 15 20:29:37 2009 : Encoding Failed
Error compiling movie.
Unknown error.
- Source File: /Users/slees/Library/Caches/TemporaryItems/Gifkins_1_3.prproj
- Output File: /Users/slees/Desktop/Sequence 04c.mov
- Preset Used: Custom
- Video: 720x576, 25 [fps], Lower, Quality 100
- Audio: 48000 Hz, Stereo, 16 bit
- Bitrate: Uncompressed YUV 8 bit 4:2:2
- Encoding Time: 00:00:09
Sun Feb 15 20:31:51 2009 : Encoding Failed
Error compiling movie.
Unknown error.
- Source File: /Users/slees/Library/Caches/TemporaryItems/Gifkins_1_4.prproj
- Output File: /Users/slees/Desktop/Sequence 04c.mov
- Preset Used: Custom
- Video:
- Audio:
- Bitrate:
- Encoding Time: 00:05:51
Sun Feb 15 20:37:33 2009 : Encoding Failed
The Operation was interrupted by user
- Source File: /Users/slees/Library/Caches/TemporaryItems/Gifkins_1_5.prproj
- Output File: /Users/slees/Desktop/Sequence 04b.mov
- Preset Used: Custom
- Video: 720x480, 29.97 [fps], Lower, Quality 100
- Audio: 48000 Hz, Stereo, 16 bit
- Bitrate: DV/DVCPRO - NTSC
- Encoding Time: 00:00:10
Sun Feb 15 20:40:38 2009 : Encoding Failed
Error compiling movie.
Unknown error.
- Source File: /Users/slees/Library/Caches/TemporaryItems/Gifkins_1_6.prproj
- Output File: /Users/slees/Desktop/Sequence 04d.mov
- Preset Used: Custom
- Video: 720x480, 29.97 [fps], Lower, Quality 100
- Audio: 48000 Hz, Stereo, 16 bit
- Bitrate: Cinepak
- Encoding Time: 00:00:10
Sun Feb 15 20:42:27 2009 : Encoding Failed
Error compiling movie.
Unknown error.
- Source File: /Users/slees/Library/Caches/TemporaryItems/Gifkins_1_7.prproj
- Output File: /Users/slees/Desktop/Sequence 04e.mp4
- Preset Used: PAL DV High Quality
- Video: PAL, 720x576, 25 [fps], Lower
- Audio: AAC, 192 [kbps], 48 kHz, Stereo
- Bitrate: VBR, 1 Pass, Target 3.00, Max 6.00 [Mbps]
- Encoding Time: 00:00:11
Sun Feb 15 20:52:39 2009 : Encoding Failed
Error compiling movie.
Unknown error.
- Source File: /Users/slees/Library/Caches/TemporaryItems/Gifkins_1_8.prproj
- Output File: /Users/slees/Desktop/Sequence

Answer 1

I have exactly the same problem. Premiere Pro CS4. MP4 files in a 19 minute movie. Tried to export as MPEG 2 DVD, .MOV .AVI .WMV. All failed in Adobe Media Encoder. Last test said Could not write XMP date to outputfile. AME shows the encoding running but then yellow warning triagle in the status box. I tried the keyframe suggestion, no difference. I have reinstalled CS4, no luck. Very fraustrating as the client expects their DVD tomorrow. Any ideas would be apprecited. I called Adobe and they had no idea.