CDemu is a

free and open-source Free and open-source software (FOSS) is a term used to refer to groups of software consisting of both free software and open-source software where anyone is freely licensed to use, copy, study, and change the software in any way, and the source ...

virtual drive Virtual disk and virtual drive are software components that emulate an actual disk storage device. Virtual disks and virtual drives are common components of virtual machines in hardware virtualization, but they are also widely used for various pu ...

software, designed to emulate an

optical drive In computing, an optical disc drive is a disk drive, disc drive that uses laser light or electromagnetic waves within or near the visible light spectrum as part of the process of reading or writing data to or from optical discs. Some drives ...

and

optical disc In computing and optical disc recording technologies, an optical disc (OD) is a flat, usually circular disc that encodes binary data (bits) in the form of pits and lands on a special material, often aluminum, on one of its flat surfaces. ...

(including

CD-ROM A CD-ROM (, compact disc read-only memory) is a type of read-only memory consisting of a pre-pressed optical compact disc that contains data. Computers can read—but not write or erase—CD-ROMs. Some CDs, called enhanced CDs, hold both comput ...

s and

DVD-ROM The DVD (common abbreviation for Digital Video Disc or Digital Versatile Disc) is a digital optical disc data storage format. It was invented and developed in 1995 and first released on November 1, 1996, in Japan. The medium can store any ki ...

s) on the

Linux Linux ( or ) is a family of open-source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically packaged as a Linux distribution, which ...

operating system. , CDemu is not available in the official repositories of

Debian Debian (), also known as Debian GNU/Linux, is a Linux distribution composed of free and open-source software, developed by the community-supported Debian Project, which was established by Ian Murdock on August 16, 1993. The first version of D ...

Ubuntu Ubuntu ( ) is a Linux distribution based on Debian and composed mostly of free and open-source software. Ubuntu is officially released in three editions: ''Desktop'', ''Server'', and ''Core'' for Internet of things devices and robots. All the ...

and

Fedora Linux Fedora Linux is a Linux distribution developed by the Fedora Project. Fedora contains software distributed under various free and open-source licenses and aims to be on the leading edge of open-source technologies. Fedora is the upstream sourc ...

for any release, but it is available via official

PPA PPA may refer to: Biomedical * ''Palpatio per anum'', Latin medical term for a rectal examination * Parahippocampal place area located within the parahippocampal gyrus * Phenylpropanolamine * Primary progressive aphasia Organizations * Pakistan ...

for Ubuntu and COPR for

Components

CDEmu consists of: * a kernel module implementing a virtual

SCSI Small Computer System Interface (SCSI, ) is a set of standards for physically connecting and transferring data between computers and peripheral devices. The SCSI standards define commands, protocols, electrical, optical and logical interface ...

host bus adapter In computer hardware, a host controller, host adapter, or host bus adapter (HBA), connects a computer system bus, which acts as the host system, to other computer network, network and computer storage, storage devices. The terms are primarily ...

, * libmirage which is a software library for interpreting

optical disc image An optical disc image (or ISO image, from the ISO 9660 file system used with CD-ROM media) is a disk image that contains everything that would be written to an optical disc, disk sector by disc sector, including the optical disc file system. ...

s, * a daemon which emulates the functionality of a

optical

drive Drive or The Drive may refer to: Motoring * Driving, the act of controlling a vehicle * Road trip, a journey on roads Roadways Roadways called "drives" may include: * Driveway, a private road for local access to structures, abbreviated "drive" ...

+ disc, * textmode and GTK clients for controlling the emulator. Cdemu-functionality

The software is portable to other operating systems supported by

GLib GLib is a bundle of three (formerly five) low-level system libraries written in C and developed mainly by GNOME. GLib's code was separated from GTK, so it can be used by software other than GNOME and has been developed in parallel ever sinc ...

, with the exceptions of the kernel module and the clients which rely on

d-bus In computing, D-Bus (short for "Desktop Bus") is a message-oriented middleware mechanism that allows communication between multiple processes running concurrently on the same machine. D-Bus was developed as part of the freedesktop.org project, ...

communication.

History

CDemu was originally designed by Robert Penz and Justus Schwartz as a

patch Patch or Patches may refer to: Arts, entertainment and media * Patch Johnson, a fictional character from ''Days of Our Lives'' * Patch (''My Little Pony''), a toy * "Patches" (Dickey Lee song), 1962 * "Patches" (Chairmen of the Board song) ...

for

MPlayer MPlayer is a free and open-source media player software application. It is available for Linux, OS X and Microsoft Windows. Versions for OS/2, Syllable, AmigaOS, MorphOS and AROS Research Operating System are also available. A port for DOS usi ...

that allowed mounting .CUE/.BIN files. After the patch was completed, they realized the simplicity, and wrote a module for

Linux kernel The Linux kernel is a free and open-source, monolithic, modular, multitasking, Unix-like operating system kernel. It was originally authored in 1991 by Linus Torvalds for his i386-based PC, and it was soon adopted as the kernel for the GNU ope ...

. Originally, CDemu was named Virtual CD, but this name had been previously

trademark A trademark (also written trade mark or trade-mark) is a type of intellectual property consisting of a recognizable sign, design, or expression that identifies products or services from a particular source and distinguishes them from others ...

ed, and the owners of the trademark requested that they not use the name. As of June, 2007, development on CDemu 0.8 ceased and a rewrite was developed instead. Most of this work was done by Rok Mandeljc. This new version of CDemu took another approach to the emulation by doing as much as possible in

userspace A modern computer operating system usually segregates virtual memory into user space and kernel space. Primarily, this separation serves to provide memory protection and hardware protection from malicious or errant software behaviour. Kernel ...

. As of June 2008 it is considered to be mostly stable.

Status

As of version 2.0.0 CDemu supports the following image formats: * .mds and .mdx format *

.dmg DMG may refer to: Organizations Entertainment * Dames Making Games, a Canadian non-profit organization that encourages the participation of women, non-binary, femme and queer people in the creation of video games * Davidson Media Group, an Americ ...

and .cdr format *

Blindwrite BlindWrite, the successor to BlindRead, is a computer program that writes to recordable CDs. The Blindread software, which reads CDs and writes CD image files, has been discontinued as a separately released product, but BlindRead's code is includ ...

.b5t/.b6t format *

DiscJuggler DiscJuggler was a professional CD/DVD recording software program, able to duplicate multiple CDs at once with its ability to simultaneously drive multiple CD recorders and replicate virtually any existing standard CD. It is widely used for burning ...

's .cdi format *

Easy CD Creator Roxio is an American software company specializing in developing consumer digital media products. Its product line includes tools for setting up digital media projects, media conversion software and content distribution systems. The company forme ...

.cif format * Roxio / WinOnCD .c2d format *Error Code Modeller .ecm container format *gBurner .gbi format * .iso format and its compressed forms, .cso and .isz * .nrg format *PowerISO .daa format * .udf format *Raw images (

.img img or IMG is an abbreviation for image. img or IMG may also refer to: * IMG (company), global sports and media business headquartered in New York City but with its main offices in Cleveland, originally known as the "International Management Group ...

, .bin,

.ccd A CloneCD Control File is a text descriptor with the extension .ccd used by CloneCD to mark the properties of a CD/DVD image. These files need to be combined with an image file (usually with .img extension) to be burned. It may also come with a ...

.cue A cue sheet, or cue file, is a metadata file which describes how the tracks of a CD or DVD are laid out. Cue sheets are stored as plain text files and commonly have a filename extension. CDRWIN first introduced cue sheets, which are now supp ...

, .sub and .toc) *

GZip gzip is a file format and a software application used for file compression and decompression. The program was created by Jean-loup Gailly and Mark Adler as a free software replacement for the compress program used in early Unix systems, and in ...

and Xz archives The emulator endeavors to follow the MMC-3 standard for

optical drives as closely as possible, ensuring realistic and accurate emulation. Optical media emulated by CDemu can be

mounted Mount is often used as part of the name of specific mountains, e.g. Mount Everest. Mount or Mounts may also refer to: Places * Mount, Cornwall, a village in Warleggan parish, England * Mount, Perranzabuloe, a hamlet in Perranzabuloe parish, C ...

within Linux. CDemu has the support for CD subchannels,

CD-Text CD-Text is an extension of the Red Book Compact Disc specifications standard for audio CDs. It allows storage of additional information (e.g. album name, song name, and artist name) on a standards-compliant audio CD. The specification for CD- ...

ISRC The International Standard Recording Code (ISRC) is an international standard code for uniquely identifying sound recordings and music video recordings. The code was developed by the recording industry in conjunction with the ISO technical committ ...

， MCN and ECC/EDC, DPM/RMPS. There is also some support for a limited number of encrypted and compressed image formats. The developers are working on supporting as many major formats as they can, and they encourage users to submit patches to this end.

References

External links

Official website
{{DEFAULTSORT:Cdemu Disk image emulators Third-party Linux kernel modules Optical disc-related software that uses GTK

Components

History

Status

See also

References

External links