Right, that's how it works. FLAC stores the MD5 of the uncompressed data.
On Sep 13, 2010, at 3:24 PM, JJZolx wrote:
>
> Just to be sure I understand correctly... For the final implementation
> (not this test), if a Flac file contains a Flac-generated MD5 checksum
> ('MD5 signature') in the STREAMINFO metadata block, then that MD5 will
> be used as the track's unique identifier and SbS won't calculate its
> own checksum?
>
> I just ran a little test and the Flac-generated MD5 checksums for both
> a Flac file re-encoded at different compression levels and for the raw
> WAV file encoded at different compression levels are all exactly the
> same. Which means that it must be calculated on the UNcompressed data.
> Which is good (if these checksums are used by SbS as identifiers), it
> means that you could re-compress your entire library at a different
> Flac compression level and maintain the persistent identifier.
>
>
> --
> JJZolx
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