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No. It's unnecessary. The contents of a DVD are compressed, so any errors would be highly visible at playback time -- so the format has enough error correction
by duskwuff 5y ago
No. It's unnecessary. The contents of a DVD are compressed, so any errors would be highly visible at playback time -- so the format has enough error correction built in to detect and correct errors. This is a fundamentally different approach from audio CD, which doesn't have sufficient error correction built in, but relies on the inherent resiliency of the raw audio format to conceal errors.
- gkop 5y agoAh, of course! Compression, doh. Thanks.
- LeoPanthera 5y agoMore practically, DVDs and blu-rays are files on a filesystem. An audio CD does not have a filesystem, it's a raw stream of pits and lands, which do not correspond directly to bits, they must be decoded first. The reason why ripping an audio CD is such an "art" is that without a filesystem there's no easy way to tell where the laser actually is on the disc. If it jumps or skips you might not realise.