DCD(1)

NAME
dcd - play audio CDs, program CD-ROM as a smart CD player

SYNOPSIS
dcd [options] [track-list]

DESCRIPTION
dcd will help you use your CD-ROM drive as a CD player under Linux. In addition to merely playing CDs, dcd can also play random tracks, accept a pre-programmed list of tracks, and generally do most of the things a good portable CD player is capable of.

OPTIONS

dir
List a directory of the CD contents (track numbers and playing times,
    and track names if they are available). This option causes dcd to exit immediately.

eject
    Open the CD-ROM tray, and exit immediately. dcd tries to locate, and kill, other dcd processes that may be running.

help
    Display a friendly help message, and exit.

info
    Display one line of information about the current CD, like this:
    Playing track 3 (of 15), length 5:35 (of 77:05)
    This option causes dcd to exit immediately.

pause
    Pause or resume the current CD, exiting immediately.

stop
    Stop the CD currently in the player. stop makes a reasonable effort to locate, and kill, other dcd processes that may be running.

version
    Report the version of dcd and a brief copyright notice, and exit immediately.

a   Print the number of the first track of the CD to stdout, and exit immediately. Comes in handy for various shell scripts.

z   Print the number of the last track of the CD to stdout, and exit immediately. Comes in handy for various shell scripts.

loop
    Loop the tracks in the track list, or the entire CD if no tracks are specified. An effort is made to locate, and kill, other dcd processes. (Having two copies of dcd running, each with different looped track lists, could get very strange very quickly.)

quit
    Normally, dcd does everything it can to get out of the way quickly, freeing up the console or xterm it was launched from and allowing you to get on with your day. Specifying quit inhibits this; i.e. dcd will NOT exit until it's done. This lets you use dcd in things like combined CD/MP3 playlists. dcd attempts to detect unwise combinations of commands (like loop and random, which would effectively create an infinite loop) and nip them in the bud.

random
    Play randomly-selected tracks from the CD forever (until killed), and return to the console immediately. As with loop, an effort is made to deal with other rogue dcd tasks. This option may accept a tracklist.

x   Display the CD Index discid for the CD, exiting immediately. This isn't often useful by itself, but might be useful in a script of some sort.

back
    Go to the previous track on the CD. If you're already on the first track, this loops around to the last track. As with many other options, we attempt to locate and kill other instances of dcd.

forward
    Go to the next track on the CD. If you're already on the last track, this loops around to the first track. As with many other options, we attempt to locate and kill other instances of dcd.

kill
    Kills off other known instances of dcd. Might be useful in a shell script, or just in case dcd somehow gets carried away and starts doing weird things.

EXAMPLES
dcd Plays a CD, plain and simple.

dcd 2
    Stars playing a CD from track 2.

dcd loop
    Plays the whole CD, over and over and over, until killed (with dcd stop).

dcd loop 2 4 7
    Plays tracks 2, 4, and 7, over and over, in that order.

dcd random
    Plays random tracks from the CD, over and over and over...

dcd random 1 3 5 7 9 12
    Randomly selects from the tracks listed, and plays 'em over and over...

dcd 4 6 quit
    Plays tracks 4 and 6, then exits. (Normally, dcd will return you to a shell prompt immediately; this option is useful for some scripts, combination MP3/CD playlists, and other cool stuff.)

BUGS
dcd doesn't make nearly as many error/sanity checks as it could. It assumes you know what you're doing, so trying to eject a CD when the tray is already open (as one example) could have undefined results. It shouldn't do anything truly bad, but under the terms of the GNU General Public License anything it somehow does isn't my fault.
dcd unfortunately now requires Internet access to work. Blame the people at MusicBrainz for that one. When they discontinued their lean, sexy "CD Index" project in favor of the current project, things got a lot less pleasant for everyone involved (except perhaps for them). Fortunately, broadband access is rather more common these days, so hopefully this isn't as much of a problem as it would have been a couple years back.

SEE ALSO
cdcd(1), workbone(1)

URL
The dcd home page is currently at:
http://www.technopagan.org/dcd/

TRIVIA
`dcd' stands for Dave's CD player.

AUTHORS
dcd was written by David E. Smith <dave@technopagan.org>. In analphabetical order, the following people contributed really keen ideas (and in some cases, actual code): Scott Walker, Luc Vrancx, Robert Tol, Kevin Thompson, Nigel Stepp, Othmar Pasteka, Markus F.X.J. Oberhumer, Mario Moder, Lorenz Minder, Lalo Martins, Britton Kerin, Alvaro Herrera, Anders Semb Hermansen, Shane Henthorne, Boris Gjenero, Aidan Delaney, Izak Burger, Don Barber, and Jens Axboe.