The X32 plays/records WAV files only. On another forum it was explained by a Behringer person that they didn't want the MP3 codec licensing fee added to the cost of every console made.
That's interesting. MP3 license cost for a hardware player is 75 cents/unit but the license cost for "commercial broadcast", "content distribution" and "physical media" is 2% of 'related revenue'. I wonder if the lawyers decided that the X32 could potentially fall under the second license type. I can't imagine forgoing a 75 cent royalty for such an important convenience feature.
Maybe they just didn't want people's illegally downloaded 64kb mp3 files played through their systems because they sound like crap, which gives the console a bad name. Might be a brand management decision, publicly claimed as a licensing issue.
Still, idiots will convert their 64 kbs mp3s to waves to play... I request .wav files for client-supplied music,for dance/karaoke/... I explain rthe ecompression problems, and I still get~ 25% crappy mp3s converted to wav because 'thats all we could find (on You Tube)".