Things are not as simple when it comes to ripping DVDs, however. For one thing, the DVD video format is more complicated. Each track on a CD is a WAV file that you can copy or convert, but the content of a DVD is divided into multiple VOB files for the video, with separate audio tracks and a menu system. The menus let you navigate through the video scenes and access alternative soundtracks, captions, camera angles, audio commentaries and extra content.
The files required in DVD ripping are much larger, especially on dual-layer DVDs, and the conversion is a more complicated process. Video processing is also very CPU-intensive; it could take you a full 24 hours to copy a DVD on a 500 MHz PC, while even a 2 GHz processor will take three or four hours to do the job. And while the version you watch on your PC or media player will be a much smaller file than what's on the DVD, you'll still need up to 10 GB of free space for the files during the ripping process.
The files required in DVD ripping are much larger, especially on dual-layer DVDs, and the conversion is a more complicated process. Video processing is also very CPU-intensive; it could take you a full 24 hours to copy a DVD on a 500 MHz PC, while even a 2 GHz processor will take three or four hours to do the job. And while the version you watch on your PC or media player will be a much smaller file than what's on the DVD, you'll still need up to 10 GB of free space for the files during the ripping process.
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