I apologize in advance for such a noob question. I currently have 750GB mirrored RAID that as of last week was strictly for just backing up my lightroom library and mp3 files. My sister came by the house this past weekend with my precious godson and dumped 6 DV tapes full of video of my nephew, and her DCR-HC90 and asked me if I knew how to back them up. Told her that I have no idea how but I figured you friendly fine folks could help me out. I experimented with the videos with my MBP, and used iMovie to import them. iMovie seems to haved imported them using .dv extension. Would just backing this up to my External Mirrored RAID in the .dv format be the best format for backup? Note that when I backup files, it's backed up on my External RAID as well as burnt onto DVDs and stored in my closet inside a plastic storage bin with silica packs. The External RAID is only plugged into the UPS and powered up when I need to backup something. I also have the files stored on a 500GB External for easy access, which is getting quite full. Is there a better video format that the videos should be imported and archived in, besides the .dv format. Any help on this matter is greatly appreciated.