I again have a few Quicktime videos that I can't import into iMovie. The problematic files seem to be "Sorenson Video" or "Sorenson 3 Video", and "QDesign Music 2 Audio".
They play fine in Quicktime Player Pro 7.0.3, but the "Save As" and "Export" menus are grayed out (only for these files: "Export" works fine with other files.) Neither ffmpegX 0.0.9t nor MPEG Streamclip 1.5.1 recognise these files as having video in them at all.
What do I need to do to convert them to something that iMovie can import, like DV?