libmad used to be in the base, which probably covered up the lack of the libmad dep...
Not in 2.4.1 and it is logical, why mpeg decoder has to be part of the base?
If you install the listed deps, OSS and libasaound MOC can't load the mp3 plugin which makes .mp3 unknown, therefore not listed by the browser. Adding libmad plugin loads, browser shows mp3 files but still can't play back, reporting 'Can't decode' error. Something is still missing. On my develpment system full with libraries it works, so I'm just trying to find which one is still missing.
I compiled MOC on 2.3 and for sure tested it before submitted.