you should do the same with the group audio with the group cdrom - I hope that works

Thanks to reply me. I already thought of that but there is no group named cdrom in the file /etc/group.
And as I can read my cd-rw I think this is not a permissions issue.

I tried to add a new group named cdrom, I added the user to this group and I changed the group owner of /dev/cdrom, /dev/dvd, /dev/hdd and /media/cdrom; but without success.
I tried this command "mount /dev/cdrom /media/cdrom -t iso9660" and the system replies me "Invalid argument". Do Slitaz support iso9660 file type ?

soory, I did not see slitaz 2.0 - I use just cooking - but as an idea, did you already try slitaz mount box?

Since you don't say why you need to mount an audio cd here is what I use on slitaz with audio cd.

I rip the wav files and convert to ogg or mp3 with Menu/Multimedia/Asunder CD Ripper.

I have a sata dvd burner and use Audacious which has a digital audio cd output plugin to play audio cd's.I had to change permissions on the drive before a regular user could play.

I have an older computer with an atapi ide dvd drive with the analog audio cable between the drive and soundcard. I use orpheus to control the drive.

Both programs retrieve song names from freedb and add them to the playlist.

There is a cdfs kernel module for mounting audio cd , vcd, etc...

http://users.elis.ugent.be/~mronsse/cdfs/

I tried it on ubuntu, it's not in slitaz repositories.

I could mount an audiocd and see the wav files,when I tried to copy or play the files as root the computer locked up.

Hello! I had the same problem: I had to change the permission on the file /dev/hdc in order to be able to play the audio CD using AlsaPlayer (Slitaz 3.0)
(as root): chmod 666 /dev/hdc

Now I can play them fine with my regular user login!

Had the same problem and just changed file permissions on /dev/sr0 as per Apteryx and that enabled Alsaplayer to play CDs. Thanks Apteryx

@Apterix : excellent same problem, same solution

Now I am trying to play a film with VLC
when I insert the film in my Ubuntu computer I have a windows opening showing the content of the DVD.
I clic right on the film and menu "open with VLC"
Nothing like it in Slitaz

can we use gnome-terminal in Slitaz ?

Not without installing half of the gnome dependencies... Seriously, you need like 100MB of GNOME's files just to use it. Rather use something like LXTerminal or Sakura.

Thanks Apteryx! the chmod 666 works fine !