3 ms·

There is no cap on music purchased from Amazon MP3 (going forward). The cap is on uploaded files, since there is no way to link your uploaded copy of Bad Roman

• podperson 16y ago
  Surely there is in fact a way, at least much of the time. In general, I assume encoding a digitized song with a given codec and quality settings is deterministic, so the files have some chance of being identical. Next, if the track were identified using a common process (e.g. CDDB) it might easily be possible to identify them as being identical in origin and then perform some tests to see if they are in fact identical and convert one into a pointer to the other.
  • tzury 16y ago
    hash is the right (and only) way to do this.
    • podperson 16y ago
      My suggested approach assumes hash as a baseline approach (identify actually identical files -- which DropBox is apparently already doing) and goes beyond this (identify files that are identical in source and intent, but different owing to random trivial errors).
• arohner 16y ago
  There is, if the MD5s match.