I have about 63 minutes of HD camcorder footage that I am having downconverted to DVD quality (through camcorder output) to iMovie. Have already uploaded the 63 minutes as 1 file. I need to break it down to 6 segments of 10 minute videos. I basically start playing the first clip. I then measure out approx. 10 minutes using the slide ruler. How do I save that 10 minutes as a file then start putting together the next 10 minutes and so on? Would appreciate the assistance. Also, any way to save these files so I can stream them on the Internet?