Try turning on the video input (and give it some sort of signal). I seem to remember that there were some issues with some Kona drivers with audio-only input.
Problem is that the “old” non-601 media has to be scaled to 720*576 (PAL) or 720*486 (NTSC) to be played to any kind of digital output. I guess this scaling is not as good as you would like. If you can, you could recreate the graphics in the “correct” pixel dimensions to get a better result.
If you open the exported QuickTime file in QuickTime player, does it look already like this? If you look at the QuickTime info (Command-I in QT Player), which framerate is displayed there? Maybe Media 100 does write a wrong framerate on self-contained exports, or maybe QuickTime has a general problem with 59.94 media?
Not sure about CS3, but it should work as with the newer versions. Simply create a comp in 1280*720, square pixels, and with 59.94 framerate. Then render out the file as progressive, and it should fast-import into Media 100.
Matt, can you posta screenshotofyourtimeline or even the timeline without media somewhere so that I can see what you are trying to do. It is not reallycleartomewhatyouare trying to achieve and what part of does not twork.
If you want to make it easy for you, give the “Suite 2” a try (assuming you are running on an Intel Mac and you have the chance to upgrade to OS X 10.6). There you can mix different frame sizes in the timeline in realtime.
Or you could convert your SDfootage to HD fitrst, e.g. In AE or Compressor. Or via a “Slowimport” via the Media100 import window into your ode and framesize of choice. But the quality is not the greatest this way. Suite2 makes it really easy.
Maybe you should split your timeline in 2 parts and have a look at if one of the parts also shows the problem. Or take the media files offline to see if the same happens without media files. If yes, you could send the timeline to Media 100 support so that they can reproduce the problem…