unsupported

Hi folks. My Alpine CDE-122 car stereo is giving me a headache with some MP3 files that are "Unsupported" (actually, "Unsupport"). I have no clue why. If I have to redo the MP3's, I can, using ffmpeg, but I need to know what the problem is first. Anybody know why this is happening? Anybody...

Hi, I create this thread with the answer in it because the other one was closed when the answer wasn't actually given... I've been struggling and wondering too long to not share the solution. Problem : You Alpine IDA-x001 show "Unssuported" for some MP3 you have on your USB Stick, you wonder...