Thanks for the update Cat! On the video issue, I think your movies must be in the format Canon is producing. AVI by nature just is a so-called container format, there can be a variety of formats in there (like MPEG-4, MPEG-2, H.264, DivX etc. etc). Canon uses the somewhat exotic Motion JPEG (MJPeg for short) format (file extension .MVI). The file extension MOV is used by QuickTime, dunno how well it copes with that. Your best bet may be to convert to MJPEG.