Can't play audio cd in Gnome -- User in audio/optical group

I'm trying to play an audio cd using gnomes cd player. I'm using udev and have already set user to audio and optical group. When I set CD Player Device to /dev/cdroms/cdrom0 I get an Error setting device. The following is displayed:
You do not seem to have permission to access /dev/cdroms/cdrom0.
This means that the CD player will not be able to run.
I checked the symlink for cdrom0 and it points to /dev/hdc which belongs to disk group. Should I add user to this group? Or did I forget to do something else besides adding user to audio and optical group?

http://archlinux.org/news.php#106
please read the information in this posting after the gpasswd -a commands. you need to add your hdX to your permissions file for udev.
for example:
# optical devices
sr*:root:optical:660
scd*:root:optical:660
pcd*:root:optical:0660
cdrom*:root:optical:0660
dvd:root:optical:0660
rdvd:root:optical:0660
cdroms/*:root:optical:0660
hdc:root:optical:0660
hdd:root:optical:0660
(that is an exerpt from /etc/udev/permissions.d/udev.permissions the entries in red are what i had to add to get proper user permissions on my cd/dvdrom and dvd-rw drives.

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Can quicktime play an video track with multiple alternate audio tracks?

Hi,
If I have a video track with multiple alternate audio tracks (say different languages), can a user select the audio track of his choice and play in Quick time?
Thanks,
Apurva

Does quick time/ safari have this capability?
QT (i.e., the QT structure embeded in current Mac OS/device IOS versions) has the ability to switch between alternative audio tracks assuming the file is properly encoded and the compression format is supported. QT 7, QT X, iTunes, and similar app player GUIs can switch between such tracks during playback but the QT plug-in cannot. In a similar manner, devices like TV can switch between such tracks but an iPhone cannot just as an iPhone can select "Chapters" but the QT browser plug-in cannot but an iPhone file programmed with both chapters and alternate audio tracks can be played back through a TV device and access both chapters and alternative audio tracks.
What I want to use is one video track with alternate audio tracks in a set level manifest and play this using HTTP Live streaming. I'm using the manifest mentioned here :
http://tools.ietf.org/html/draft-pantos-http-live-streaming-07#section-8.7
Since I do not use playlists, I am not familiar with the approach in your example. If I want alternate audio and/or video tracks, I create standalone video files with these features built in. Nor do I use RTSP if that is what you mean by "live streaming" of content. If I want to "stream" the content, I use "Fast Start" files programmed to open in the QT player app which supports these features or create reference or QT Media Link files that do the same thing.
As you mentioned, Safari on my iPhone is playing the default/first alternate audio track mentioned but not giving an option to switch tracks.
Neither Safari nor the Video app GUIs on your iPhone have a built in switching option. The only way to switch to alternate audio tracks is to do so with QT 7 Pro or possibly iTunes before loading or streaming the video file. (Am still speaking about a standalone file here and not a programmed playlist/RTSP switch.)
However Quick time on my Mac machine only plays the audio with the the video stream and not the alternate audio track.
The QT player app GUI only switches between tracks that are stored as part of the standalone file. Basically, QT files may contain up to 99 individual data tracks. In alternative audio videos, multiple audio tracks are added to the file by an editor like QT 7 Pro but only one track is designated as "active." All other tracks are designated as "inactive." The QT player GUI allows the viewer to select which audio track he or she wants to hear and then turns off the current audio track and turns on the selected audio track. Otherwise all active tracks would play simultaneously.
Is there a way to switch tracks on my iPhone on Safari?
As previously noted, the default track can be manually changed by QT 7 Pro or, I believe, iTunes (used to have this capability) before actually loading or streaming content.
Does quicktime have this capability?
As far as I know, only with regard to stand alone files programmed with multiple alternate tracks. I am not a HTML, HTML5, or Java programmer so I assume there may be web alternatives here but they would be beyond the scope of my expertise.
Do you know any free player that can do this?
Again, I don't use either playlists or RTSP so I've never had a need to look for/use alternative players that might meet your needs. I simply find it easier to build files that work correctly in current player app/device GUIs already having these capabilities.
Or the very last option, can I build a player to do this? If yes can you suggest where/how I start?
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I've got a Focusrite Saffire PRO 24 Firewire audio device. It worked perfectly until I upgraded to Yosemite. Even upgrading the driver to the last version (which suports Yosemite) I can't play sound in any way. Garageband crashes when I try to play my projects. Youtube videos on a browser stay paused on 00:00...
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11/12/14 21:06:52,132 com.apple.audio.DriverHelper[1088]: The plug-in named AirPlay.driver requires extending the sandbox for the mach service named com.apple.AirPlayXPCHelper.
11/12/14 21:06:52,132 com.apple.audio.DriverHelper[1088]: The plug-in named AirPlay.driver requires extending the sandbox for the mach service named com.apple.wirelessproxd.
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11/12/14 21:06:52,149 discoveryd[51]: AwdlD2d AwdlD2dStartBrowsingForKey: '_airplay' Browsing service started
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11/12/14 21:06:52,150 com.apple.audio.DriverHelper[1088]: The plug-in named BluetoothAudioPlugIn.driver requires extending the sandbox for the mach service named com.apple.blued.
11/12/14 21:06:52,150 com.apple.audio.DriverHelper[1088]: The plug-in named BluetoothAudioPlugIn.driver requires extending the sandbox for the mach service named com.apple.bluetoothaudiod.
11/12/14 21:06:52,153 coreaudiod[1087]: Logging disabled
11/12/14 21:06:52,170 coreaudiod[1087]: 2014-12-11 09:06:52.170272 PM [AirPlay] AirPlay: Performing audio format change for 4 (AP Out) to PCM/44100/16/2 for output and for input
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11/12/14 21:06:52,398 bluetoothaudiod[1089]: Logging disabled
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I tried to disable Airplay on System Preferences > Display. I removed com.apple.airplay.plist from Library/Preferences but the results are the same
Please a need help with this. It's getting really frustrating. I'm trying to get help from Focusrite support as well.

In case another poor man like me run into this issue, here's how I solved it:
First of all, I removed Saffire Mix Control entirely following this guide:
http://global.focusrite.com/answerbase/how-do-i-remove-saffire-mixcontrol-from-m y-mac
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mickyja wrote:
I don't own an Apple device, but I have purchased an audio album from the iTunes store. How can I play this on my android phone, as I am unable to burn the album to mp3 format? Can I obtain a refund if this is not possible? Thanks
p.s. I am not knowledgeable of Apple/iTunes etc, I was under the impression that if I purchased an album then I can use my purchase on a non-Apple device
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Attachments:
audio.png ‏6 KB
test2.png ‏7 KB
specs.png ‏16 KB

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