MP3 files in Linux how to play them?!!!!!

[Ivan Evstegneev]

Does someone can please explain me what is going on with mp3 files on
linux? 
I guess I missed something....
Why this function is disabled in all players?!!!! What will I do without
mp3?!!!! Is there are some "other" ways to listen to the mp3? And
internet radio stations like on www.di.fm (not an advertisement)...
If it is some stupid politics, so why M$ don't do the same things? Why
they still permit the use of winamp an etc? This is stinks...

I just feel deeply depressed 'cause all this...  :(