Now that 11.2 gets closer and closer to the rc status being able to play mp3 becomes important in order to make the testing experience even nicer.
Here is my workaround to get that mp3 working in amarok. I do not know about the dvd’s as the only one that I own is to boring to use it for testing purposes
zypper in file:<Path-to>libcdio7-0.80-5.30.x86_64.rpm
zypper in file:<Path-to>libiso9660-5-0.80-5.30.x86_64.rpm
zypper in file:<Path-to>libMagickCore1-184.108.40.206-5.3.x86_64.rpm
zypper in file:<Path-to>libMagickWand1-220.127.116.11-5.3.x86_64.rpm
zypper in libxine1-codecs
So as you can see I just use the missing libs from 11.1.Of course I assumed that you added the 11.1 packman to your repos already.