| Weblog: | MS DRM is pure smoke | |
| Subject: | re-encode == LOSS of quality | |
| Date: | 2003-07-22 12:15:10 | |
| From: | anonymous2 | |
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Response to: re-encode == LOSS of quality
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Similarly to how JPG has "lossless re-encode," there isn't really any good reason that you couldn't reencode an MP3 or MPEG-4 video. The point is that the original encode suffers loss, but in doing so puts the image in an easily-compressible form (by blocking it and removing high-frequency noise, etc.). After decoding it's still in this form, and so if you were to compress using the same parameters, you should get essentially the same file out. (This gets less and less likely the more complicated the input format is, but I think at least it would work for MP3.)
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