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Thread: CRC32s don't match but AccurateRip CRC does

  1. #1

    Question CRC32s don't match but AccurateRip CRC does

    Same CD (not in AR database) ripped securely on 2 different machines. Both reported secure rips (green checks). All tracks had matching CRCs except last track which had matching Accurate Rip CRCs but mismatched CRC32s.

    Track 9: Ripped LBA 149158 to 155923 (1:30) in 0:26. Filename: D:\Working\Die Princess Die\[2004] Die Princess Die\09 Cinatic [Remix].flac
    Secure [Pass 1 & 2, Ultra 1 to 3]
    CRC32: B3D5CF82 AccurateRip CRC: 85B13767 (CRCv2) [DiscID: 009-000b566f-00557fd2-76081e09-9]
    ------------------
    Track 9: Ripped LBA 149158 to 155923 (1:30) in 1:16. Filename: D:\Working\Die Princess Die\[2004] Die Princess Die\09 Cinatic [Remix].flac
    Secure [Pass 1 & 2, Ultra 1 to 3]
    CRC32: F8CBFF81 AccurateRip CRC: 85B13767 (CRCv2) [DiscID: 009-000b566f-00557fd2-76081e09-9]
    ------------------

    I'm curious as to what's going on here. Why would one CRC match and the other not? Is the CRC32 calculated on the full file, with metadata? I did notice that the metadata is slightly different between machines (cover art appears identical to the eye, but the file sizes are different), but then the CRC32 should be mismatched for every file. Any thoughts?

  2. #2
    Administrator
    Join Date
    Apr 2002
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    Re: CRC32s don't match but AccurateRip CRC does

    If last track, then it is because of drive offsets.

  3. #3

    Re: CRC32s don't match but AccurateRip CRC does

    Okay, thank you for the response, Herr Spoon.

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