How to read the audio CD IMAGE created by ``cdrdao" ?

lawrence_lee_lee · 08-07-2008, 10:23 PM

I've created an image of an audio CD by ``cdrdao". How can I read that afterward? Now I have an image but I can do nothing with it!

For example, if I want to use flac or lame to encode the music in the image, what should I do? Or I simply want to mount it and play the music, what should I do?

Thanks for any help!

amani · 08-09-2008, 06:10 PM

First you mount the iso.

#mkdir /abc
#su
#mount -t iso9660 -o loop efg.iso /abc

lawrence_lee_lee · 08-09-2008, 11:32 PM

I've tried this, but this did not work. I think this is probably because that audio CD does not contain any filesystem, but simply tracks of audio data.

Any suggestions are welcomed. Thank you!

jomen · 08-10-2008, 02:54 AM

Why don't you burn the image to a CD?
How did you make the image?

teckk · 08-10-2008, 06:28 PM

Quote:

I've created an image of an audio CD by ``cdrdao

Did you make an .iso file? And have it on your hard drive?

An audio CD does not have a file system on it. You can't mount it.
You read it / play it with an audio player. To mount an .iso file do like amani said.

Quote:

For example, if I want to use flac or lame to encode the music in the image

Not sure what you are doing. The native format for a CD is .wav. If you want to make a CD with .mp3 on it, make a data cd and copy the .mp3 files onto it.

If you want to modify an .iso immage then mount it, alter it, burn it.

lawrence_lee_lee · 08-11-2008, 12:20 AM

Thanks! I should have make it clearer what I've done. Here's what i did.

Quote:

cdrdao read-cd --read-raw --datafile ./image.iso --device /dev/hdb -v 2 ./image.iso.toc

I then have the image of the audio CD named image.iso in the current directory. Now, I want to play the audio within this image. What should I do?

jomen · 08-11-2008, 02:36 AM

Write it to a CD - your image, although you named it image.iso, it is still no iso image and cannot be mounted - there is still no filesystem - just like on the CD.
cdrdao write <options> _could_ work
You could probably use tools like "cdda2wav" to extract the music or whatever from the image just as you do when doing that on a real CD - but I would'nt know if that works (because the image is no block device as cdda2wav expects to find).
Also look here:
http://www.linuxquestions.org/questi...66#post3243266
for hints on how extracting audio can be done.