1) This is not a developer topic.
2) I thought all Sony digital video cameras had iLink (IEEE1394) support for sending DV streams. Are you sure you are using the right cable? More info might help us figure out your problem, rather than the overly ambiguous "I gots a sony camera and it don't work with my mac." Like, you know, what kind of mac do you have, what kind of sony camera do you have...