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CDemu is a software suite designed to emulate an optical drive and disc (including CD-ROMs and DVD-ROMs). It enables you to use other disk image formats that contain more than just the standard ISO-9660 filesystem, for instance .bin/.cue, .nrg, or .ccd images. mount can directly handle only .iso disc images (which contain a single filesystem), but many images contain multiple sessions, mixed data/audio tracks… In short, cdemu enables you to mount nearly any kind of image file with ease.


CDemu can be installed with package cdemu-client, availale in official repositories.

Warning: Due to upstream developer's decision cdemu no longer uses libdaemon and instead utilizes dbus for communication with cdemu-client. This broke the package in the official repository which currently lacks of a maintainer. cdemu-daemon-fixedAUR in AUR was created as a quick fix for the problem and should be used until the official package is fixed. See FS#26534 for additional details.
Note: Both packages (in AUR and community) contain daemon script cdemud in /etc/rc.d/, but it is hardly useful together with dbus. See man cdemu man cdemud for details.


There are several GUIs available in the AUR.

  • GTK/Gnome: gcdemuAUR is the official GTK version, which also provides a GNOME panel applet.
  • KDE: kde-cdemu-managerAUR is the KDE equivalent which also integrates with Dolphin's Actions menu when right clicking an image file.


Loading a single image to first device:

# cdemu load 0 ~/image.mds

Loading multiple-file image to first device:

# cdemu load 0 ~/session1.toc ~/session2.toc ~/session3.toc

Loading a text-based image in non-ASCII/non-Unicode encoding:

# cdemu load 0 ~/image.cue --encoding=windows-1250

Loading an encrypted image with password provided as an argument:

# cdemu load 0 ~/image.daa --password=seeninplain

Unloading first device:

# cdemu unload 0

Displaying device status:

# cdemu status

Displaying device mapping information:

# cdemu device-mapping

Setting daemon debug mask for the first device:

# cdemu daemon-debug-mask 0 0x01

Obtaining library debug mask for the first device:

# cdemu library-debug-mask 0

Disabling DPM emulation on all devices:

# cdemu dpm-emulation all 0

Enabling transfer rate emulation on first device:

# cdemu tr-emulation 0 1

Changing device ID of first device:

# cdemu device-id 0 "MyVendor" "MyProduct" "1.0.0" "Test device ID"

Enumerating supported parsers:

# cdemu enum-supported-parsers

Enumerating supported fragments:

# cdemu enum-supported-fragments

Enumerating supported daemon debug masks:

# cdemu enum-daemon-debug-masks

Enumerating supported library debug masks:

# cdemu enum-library-debug-masks

Displaying daemon and library version:

# cdemu version