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Re: [ARSCLIST] What type of file are music CD's saved as
Very nicely said and helpful for those who should know......thank you
Paul Tombleson
----- Original Message -----
From: "Michael Fingerhut" <mf@xxxxxxxx>
To: <ARSCLIST@xxxxxxxxxxxx>
Sent: Wednesday, April 21, 2004 1:01 PM
Subject: Re: [ARSCLIST] What type of file are music CD's saved as
> > Does anyone know what type of file a regular music cd is actually
> saved
> > as?
>
> If by "regular music cd" you mean audio CD, the format of the contents
> is linear PCM (similar to a WAV file, say, without any headers), i.e.,
> uncompressed. The format on the CD itself is not really a file format
> per se. The ".cda" extension some systems show now are not really the
> audio contents themselves, but more of an index into the CD. More (and
> plenty thereof) information on the CD Faq, at http://www.cdrfaq.org/.
> The CDA info is in section 2-36.
>
> So in order to burn an audio CD, the source will have to be
> uncompressed, either to begin with or through digital or analogue means.
> The only way, in the latter case, not to loose any quality would be if
> the compression used was lossless, and if the uncompression is done
> digitally.
>
> Michael Fingerhut
> Director, Multimedia Library
> and Engineering Bureau
> IRCAM - Centre Pompidou
> Paris, France
>