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Introduction > Introduction - Pg. 16

Meet Digital Video The small size has lots of advantages. You can flm surreptitiously when necessary. DV camcorders don't make kids or interview subjects nervous like bulkier equipment. The batteries last a long time, because they've got less equipment to power. And, of course, smaller means it's easier to take with you. Still, DV cassettes aren't perfect. Most hold only 60 or 80 minutes of footage, and they're more expensive than analog tapes. As you'll soon see, however, both of these limitations quickly become irrelevant in the world of iMovie. The whole idea is that iMovie lets you edit your footage and then, if you like, dump it back out to the camcorder. In other words, it's common iMovie practice to delete the boring footage from DV tape #1, preserve only the good stuff by dumping it onto DV tape #2, and then reuse DV cassette #1 for the next shooting session. The quality is astounding Video quality is measured in lines of resolution: the number of tiny horizontal stripes of color the playback uses to fll your TV screen. As you can see by this table, DV quality blows every previous tape format out of the water. (All camcorders, TVs, and VCRs have the same vertical resolution; this table measures horizontal resolution.) Tape Format Maximum Lines of Resolution