I imported roughly 7 hours of Mini DV tapes footage into iMovie with my Sony DCR-PC100 via Firewire. Now everything seems to be in user > Movies > iMovie Events and the files have a .dv file extension. How can I back-up this footage onto a DVD before I start working on it in iMovie? Also, if it is simply a matter of burning the contents of the iMovie Events folder onto a DVD via Finder, then can other apps/ OS platforms read off of that DVD or will it have to be iMovie/ Mac OS X only? Thank you in advance for helping.