i need to give my ex1 and 5dmarkII footage to a friend for editing and grading. I should put them on an ext HD, still don't know how he's going to work them (pc or mac). Which is the best way to do this exchange? sholud I copy and paste the entire cards in some folder on ext HD? should I ingest first the footage (but then how? there will be a transcoding both on PC or Mac..). i know that nothing will work if i ever loose some info contained in the cards folders..any sdvice?