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From iMovie to QuickTime > From iMovie to QuickTime - Pg. 309

feature), so that, if you owned a fancier editing program, you could superimpose a photo on top of the video. ·SorensonVideo,SorensonVideo3. Here it is--the codec that gives you very high quality with very good compression, and fles so small that you can play them from a CD-ROM or even over the Internet. Sorenson-compressed movies play back on either Macs or Windows computers, too. (Use Sorenson Video 3 if possible. Use the older Sorenson Video--without a number--only if your audience might still be using some ancient version of QuickTime to play back your opus.) ·Video. You might think of this, one of the original QuickTime codecs, as the "fat Sorenson." The quality is very high, and it doesn't take very long to compress and save the movie in this format--but the compression is light. The resulting fles aren't suitable, therefore, for transmitting on the Internet. Tip: The Video compressor doesn't take very long to save a QuickTime fle. For that reason, it's a great choice of format when you want to test your fnished iMovie. You can see how it will look as a QuickTime movie, see how your transitions and titles will look, experiment with different frame rates, and so on. The Video Codecs: A Catalog Burning QuickTime Movie CDs As you may have read in the previous chapter, iMovie makes it easy to preserve your masterpiece on videotape, suitable for distribution to your admiring fans. As you'll read in Chapters 15 through 18, you can retain even more of your digital quality and still reach the masses by burning your opus onto a DVD. There is, however, an in-between step. You can also preserve your QuickTime movie fles (the ones you export from iMovie using the instructions in this chapter) on a CD. Of course, in the world of video, what's meant by "CD" varies dramatically. There have been as many different incarnations of videodiscs as there have been of Madonna. These days, if you claim to have put video on a CD, you probably mean one of these two things: · You took some ordinary QuickTime movies and burned them onto a CD (or a DVD, for that matter), which you can play only on the computer. You insert the disc, see the icon for the QuickTime movie fle, and double-click it. You then watch it in the QuickTime Player program (see Chapter 14). · You created a Video CD, a weird, low-budget cousin of the DVD. A Video CD is indeed a videodisc, and it can indeed be played by many DVD players. But the quality is no better than that of a VHS videocassette. (Technically speaking, this disc contains an MPEG-1 movie fle, as opposed to the MPEG-2 fles on DVDs.) The following discussion offers a road map for creating both kinds of "video CDs." chapter12:fromimovietoquicktime 309