I'm just taking my first look at video editing have a Panasonic HD camcorder (HDC-SD10) and an imac running Snow Leopard. The format from the Camcorder is .m2ts which play great on the PS3 but won't play on the iMac unless I use VLC. Now I'd like to edit these video files in iMovie and know that I have to convert them to be able to do so. Obviously I'd like to be able to convert these a) losslessly and b) if possible using freeware. Losslessly is the main requirement though. Is it possible to do a lossless conversion and if so with what software.????