<html> <head> <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#FFFFFF" text="#000000"> Thanks for some useful info. Once the CD is mounted, running "audacious cdda://" from lxterm successfully plays the CD. Also, if I temporarily edit /usr/share/applications/audacious.desktop to change "Exec=audacious %U" to "Exec=audacious cdda:", then choosing Audacious from the Medium-Inserted popup also successfully plays the CD. Furthermore, the main menu shortcut for Audacious also runs "audacious %U," so the desktop Exec entry seems NOT to be specialized for x-content/audio-cdda (though with that statement I'm venturing beyond my actual knowledge of the operating methods here). I can add that with the CD mounted, running "vlc cdda:" also plays the CD. Running "gnome-mplayer cdda:" produces a crash error as before after the UI appears. Running "rhythmbox cdda:" merely starts the program without playing the CD. More on Rhythmbox: Though its CD-playing behavior was the best of the 4 programs under Edubuntu, it is the worst under Lubuntu as I previously posted (choosing Rhythmbox from the Medium-Inserted popup results in nothing at all happening). In /usr/share/applications, it has two configuration files rather than one like the other programs. Both of the configuration files make use of section labels, which the other programs' desktop files do not. Rhythmbox.desktop in its [Desktop Entry] section has an "Exec=rhythmbox %U" entry. Rhythmbox-device.desktop in its [Desktop Entry] section has an "Exec=rhythmbox-client --select-source %U" entry. And though I'm new to Linux, I have not seen that LXDE has a config UI similar to this one referred to for XFCE: <a href="http://s15.postimage.org/94l94znm1/thunar_volman.png">http://s15.postimage.org/94l94znm1/thunar_volman.png</a> <div class="moz-cite-prefix">On 9/18/2012 7:33 AM, Sandor Ortegon wrote: </div> <blockquote cite="mid:50585C14.90708@myopera.com" type="cite"> This issue was copied to Audacious forum and John Lindgren, one of the main Audacious developers mentioned this, if useful: "Audacious will start playing a CD automatically if you run "audacious cdda://". All you need to do is configure Lubuntu to run that command when an audio CD is inserted. This is how I configure XFCE to play a CD in Audacious when I insert it: <a class="moz-txt-link-freetext" href="http://postimage.org/image/700w3wlzb/">http://postimage.org/image/700w3wlzb/</a>. I would be very much surprised if LXDE does not have a similar option." I hope this can be useful ... I guess if this is Audacious problem, the guys from Audacious are willing to solve it (John answers very fast and most bugs are fixed rather quickly) ... but it seems to me, according to the comments about Rhythmbox that the problem lies elsewhere. </blockquote> <div class="moz-cite-prefix">On 9/17/2012 11:31 PM, PCMan wrote: </div> <blockquote cite="mid:CAAMR6=5JdysjZxXFE8+FDk9RY7OjgGW4xGe=jEodENgH5LLBjg@mail.gmail.com" type="cite">That "medium-inserted" popup is generated from registered handlers of "x-conent/*" mime-types. See: <a class="moz-txt-link-freetext" href="http://standards.freedesktop.org/shared-mime-info-spec/shared-mime-info-spec-latest.html#id2710963">http://standards.freedesktop.org/shared-mime-info-spec/shared-mime-info-spec-latest.html#id2710963</a> Check if the desktop entry files of these programs have correct command lines for this purpose. Desktop entry files for "x-content/audio-cdda" should not be the same as the one shown in application menu. There should be desktop entry files specialized for "x-content/audio-cdda" since playing audio CD may need different commands. Just my 2 cents. </blockquote> </body> </html>