Réponse sur le site officiel, section Appdb
http://appdb.winehq.org/appview.php?versionId=1177
Assure toi aussi que le lecteur est monté avant de lancer wine.
winecfg
* Make sure the Windows version for Warcraft 3 is 2000, XP, or 2003.
* Create a drive letter for your CD-ROM. Make sure it is set to the CD-ROM type.
In ~/.wine/dosdevices you must make a symbolic link to the corresponding device node of your CD-ROM like the following:
lrwxrwxrwx 1 jesse users 10 2005-12-28 13:35 d: -> /mnt/cdrom
lrwxrwxrwx 1 jesse users 8 2005-12-28 13:35 d:: -> /dev/hdc
If you don't have d:: then run a command similar to this (use your own paths):
$ ln -s /dev/hdc ~/.wine/dosdevices/d::
Make sure that your user account has read access to your cdrom device. ie: if /dev/hdc is your cd-rom
bash-3.00$ ls /dev/hdc -l
brw-rw---- 1 root cdrom 22, 0 2005-12-30 08:53 /dev/hdc
bash-3.00$ grep cdrom /etc/group
cdrom::19:jesse