Re: 1:1 copy of audio CD with cdda2wav and cdrecord

From: Dances With Crows (danSPANceswitTRAPhcrows_at_usa.net)
Date: 02/27/04

  • Next message: David Szlucha: "Re: Formatting/partitioning a flash drive" 
    Date: 27 Feb 2004 00:06:53 GMT

    On Thu, 26 Feb 2004 15:33:53 -0800, justdave staggered into the Black
    Sun and said:
    > On 2/26/04 6:52 AM, Dances With Crows wrote:
    >> "cdrdao copy --device X,Y,Z" is the way to copy CDs. Data, audio,
    >> VCD, SVCD--doesn't matter. HTH,
    > My apologies if this is a dumb question... I use dd and cdrecord to
    > copy data CDs, which works quite well; would this also work for audio
    > CDs?

    No. Nor will it work properly for multisession data CDs. dd will give
    you an I/O error if you try "dd if=/dev/sr0 of=temp.wav". If you try dd
    on a multisession data CD, it'll read up to the end of the first session,
    leaving you with an incomplete data CD.

    > I haven't yet tried to copy a music disc using Linux, but it seems
    > like it should work..??

    Nope. Audio CDs are a special case because of the way they're
    constructed. There's no filesystem on an audio CD, just a TOC and 1 or
    more tracks containing 2352-byte sectors of 16-bit stereo PCM data in
    network byte order. Data CDs have 1 or more tracks containing 2048-byte
    sectors (the extra 304 bytes are used for error correction data) and
    they usually have an ISO9660 or UDF filesystem in those sectors. If you
    need to rip audio data from a CD, use cdparanoia or cdda2wav with the
    -paranoia switch. If you need to make an exact copy of an audio CD, use
    the cdrdao command I posted earlier--you can get a close copy with
    cdparanoia and cdrecord, but you'll probably mess up the inter-song gaps
    if you write in TAO mode. HTH, 

    -- 
Matt G|There is no Darkness in Eternity/But only Light too dim for us to see
Brainbench MVP for Linux Admin /    mail: TRAP + SPAN don't belong
http://www.brainbench.com     /                Hire me! 
-----------------------------/ http://crow202.dyndns.org/~mhgraham/resume
  • Next message: David Szlucha: "Re: Formatting/partitioning a flash drive"

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