Speaking of Firefox, its users have a better option thanks to the free DownloadHelper extension. For those files, turn to Firefox or a third-party tool. Unfortunately, you can’t download MPEG-4 files using this method. As mentioned earlier, you can then play this file with a third-party tool. Option-double-click on it and it will download to your Mac as an flv file. In the list of links below look for an entry of several megabytes that appears to be loading. In this window you’ll see the name of the video followed by the word YouTube. Press Command-Option-A to produce Safari’s Activity window. For example, navigate to a YouTube video you want to capture and start it playing. If you’re using Safari you’ll find that there’s no obvious command for capturing streaming YouTube videos, but it can be done with the browser’s built-in tools provided that you’re downloading a Flash file.
Easy or difficult, it’s possible to capture just about any video on the Web. While you can play these videos in a browser or with a third-party application such as the VideoLAN client (or in QuickTime Player if you’ve installed the Perian plug-in), you must convert these to a format compatible with iOS devices. However, many websites continue to offer videos encoded in the Flash (flv) format. For example, it’s fairly easy to download MPEG-4-encoded content and play those videos on your Mac and iOS devices because MPEG-4 is natively supported on these devices.
Capturing Web video can be a one- or multi-step process, depending on how the original content is encoded and protected.
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