Recording at a slow frame rate won't provide you with very good slow motion playback. You want to record at a high frame rate...For example, some Sony camcorders have a "SmoothSlowRecord" feature that allows fast frame rate capture (120 fps) for a 3 second burst. When played back at NTSC standard 30 fps, the playback takes 12 seconds (or 25% of the original speed). The Casio Exilim line has longer high frame rate capture.If you just use the camcorder's 30 fps capture and have the video editor slow the playback, when you get to about 15 fps (or 50% of the original speed) is when the video starts being a bit jerky...Photron and Vision Research (and others) make high speed cameras that can do 300 fps, 1,000 fps and even 3,000 fps or higher - they are expensive.