I’m not sure if this is a real problem or something I’ve managed to stuff up, but when I shoot both movies and still images on the G3 I use Image Capture and the Download Some option to pull off the movie files, iPhoto to read the stills and then reformat the card.

Recently I’ve shot more than one movie file between downloads and it seems as if the first one is the only one that transfers properly, so on a whim I changed the communication type on the G3 from Normal to PTP. Using Image Capture again all four movie files came down and worked correctly – one major difference is that each movie read using PTP has it’s icon set to the first frame; the corrupted ones just had a generic Quicktime icon.