You need to install the corresponding decoder, Mint can play because of the default decoder.
Please execute the following command in terminal:
But I recommend  you to use our built-in Deepin Music.

I Maggies,

sadly that did not do it. It says it already has the latest version.
"gstreamer0.10-fluendo-mp3 is already the newest version."

For the moment I am using Deepin Music but Banshee it is more advanced for now. Hopefully it will get  there.

I'd love an answer to this question.  I tried the command below and it worked and got the following:

Reading package lists... Done
Building dependency tree      
Reading state information... Done
gstreamer0.10-fluendo-mp3 is already the newest version.
The following packages were automatically installed and are no longer required:
  hyphen-en-us kdegames-data khelpcenter4 language-pack-en
  language-pack-en-base language-pack-gnome-en language-pack-gnome-en-base
  libkdegames6
Use 'apt-get autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded

However, banshee and freeconferencecalling.com still won't work.

Edited by JLey at 2015-8-7 08:48

I just found GMusic Browser by Deepin.  Once I found the option to make it look like iTunes, my stress was relieved.  I can do without Banshee while using Deepin.  I just wish there was more activity on this forum.  Does the community need more Leaders?