Detect Audio CDs

Philip87 · 03-05-2012, 12:30 PM

Hi everyone,
I'm playing around with multimedia programming and I am wondering what's the most convenient way to detect if an inserted CD is an audio CD? How can I make my application notice that a CD has been inserted?
Thanks, best regards,
Philip

Andy Alt · 03-06-2012, 12:00 AM

Philip, what programming language are you using?

You might have better luck receiving an answer if you request this thread be moved to the programming forum.

Philip87 · 03-06-2012, 03:42 AM

Right, I haven't been quite clear. I am programming c++, but I was thinking to make use of some pre-existant command line tools for this purpose. That's why I have posted in this forum.

Andy Alt · 03-06-2012, 07:34 PM

I know this isn't what you were looking for, but could you use or adapt this method to suit your needs?

Tutorial on reading Audio-CDs

or maybe this would give you some ideas:

Quote:

root@debian:~# mount /dev/sr0 /mnt/cdrom/ ; echo $?
mount: block device /dev/sr0 is write-protected, mounting read-only
mount: you must specify the filesystem type
32

Where $? means to echo error code (32). This was my attempt to mount an audio cd.

or this

Quote:

root@debian:~# file -s /dev/sr0 ; echo $?
/dev/sr0: ERROR: cannot read `/dev/sr0' (Input/output error)
1

The 1 is the error code.