Here's how to fix MPEG-2 Export in Tiger
You will NEED a DVD Studio Pro 3 Installation Disk to do this. DVD Studio Pro 4 does **NOT** carry what is necessary to do this.
1. Go to Library / Quicktime and delete "QTMPEGExport.component" if it's there. Empty Trash.
2. Go to Syster / Library / Quicktime and delete "QTMPEGExport.component" if it's there. Empty Trash.
3. Download Pacfist from versiontracker.com.
4. Insert your DVDSP3 Installation Disk.
5. Open Pacifist and click "Open Package." Select "DVDStudioPro3.pkg" OR whatever reference file is available.
6. Search for "QTMPEGExport.component" by pressing Apple-F.
7. Extract "QTMPEGExport.component" to System / Library / Quicktime.
8. Verify your password and it's done!
Something about installing Tiger messes up the file, and QuickTime 7 might act a little funny while trying to export your movie. But THIS WORKS and it is FAST!!!! I just did it. I'm not a big fan of Compressor, especially after I was forced to use it since installing Tiger. I've always gotten better results out of QuickTime (which is sad considering).
Hope this helps someone!