Re: Size of *.wav on disk 'v' on cd

Hi Folks What's with *.wav files on an audio cd? Each one is almost exactly 4 times the size on disk. I created the audio cd with audacity, but files with real names on disk are called 'Track $N.wav' on cd. Is there a formula I can use to convert the on-cd size to the on-disk size, so as to work out exactly which files of my 1938 are on each cd? TIA. Ron

This all from memory (dang accurate)

Music CDs, aka "red book" format, don't have WAV files, and yes, the track sizes are ~three times bigger , but they overlap --- built-in-raid-like-scratch-resistance

So if your cd-reader/file-explorer shows you wav files, you must remember there are no wav files , and this is a bug in the cd-reader/file-explorer, its not accounting for the red-book format

If it is possible to account for red-book, if there is a formula, the CD FAQ would have it

Anyway, why not create images/.iso?

Or why not use http://cdexos.sourceforge.net/ since it will rip/convert, and tag your files with data from CDDB (and name them using CDDB data), just like Audio::CD - Perl interface to libcdaudio (cd + cddb)

I'm not sure, but cdexos may also know how to get cddb data and rename your wave files, in case you already copied all your disks (eeek), and the files are grouped by disk

Comment on Re: Size of *.wav on disk 'v' on cd

Replies are listed 'Best First'.
Re^2: Size of *.wav on disk 'v' on cd by locked_user sundialsvc4 (Abbot) on Nov 28, 2011 at 12:49 UTC
I seem to remember somewhere that CD sound-files were designed to be “bigger,” so that if the player happens to encounter a bum track, it can skip to the next one and play it, instead, without you noticing. So, the format deliberately uses a “big, fat, long” waveform instead of a “tight, compact, space-efficient” one. This lets manufacturers use “factory seconds” for publication instead of throwing them away. (To this day, you see CD-R factory seconds being sold as “music” CDs. Every now and then, misinformed people – my mother, for instance – will use them for backups. Oops...)

Replies are listed 'Best First'.

Re^2: Size of *.wav on disk 'v' on cd
by locked_user sundialsvc4 (Abbot) on Nov 28, 2011 at 12:49 UTC

I seem to remember somewhere that CD sound-files were designed to be “bigger,” so that if the player happens to encounter a bum track, it can skip to the next one and play it, instead, without you noticing. So, the format deliberately uses a “big, fat, long” waveform instead of a “tight, compact, space-efficient” one. This lets manufacturers use “factory seconds” for publication instead of throwing them away. (To this day, you see CD-R factory seconds being sold as “music” CDs. Every now and then, misinformed people – my mother, for instance – will use them for backups. Oops...)