I've started playing around with some very basic video editing .. trimming the ends and some bits in the middle, etc. and so far all seems to be going OK. I'm using the Quick mode at the moment, but I'm slightly lost as to how best to save my edited product. It's easy enough to name the file and select a destination, but there's also a bewildering choice of formats to choose from. The drop down menu looks like this: NTSC DVD Standard (default setting) NTSC DVD Widescreen PAL DVD Standard PAL DVD Widescreen HD 720p 25 HD 720p 30 MPEG2 1440x 1080i 25 MPEG2 1440x 1080i 30 MPEG2 1920x 1080i 25 MPEG2 1920x 1080i 30 HDTV 1080i 25 High Quality HDTV 1080p 24 High Quality HDTV 1080p 25 High Quality HDTV 1080p 29.97 High Quality HDTV 720p 24 High Quality HDTV 720p 25 High Quality HDTV 720p 29.97 High Quality TiVo® Series2™ (NTSC) I haven't a clue which one to use. Videos from my Canon 5D MkIII are 1920x1080, so I guess I need to select the format choice (above) that matches the video record settings in camera. However, when it comes to editing a downloaded video clip from an outside source (e.g. YouTube), what then would be the governing factor when it comes to selecting the most appropriate format to save?