As a loyal Android user for the last several years, I can say MX Player is the most promising media player application ever. However, despite being the best media player, MX Player has some incompatibility issues. You may see an error message that ‘EAC3 Audio not supported’. This message flashes on your screen due to EAC3 codec incompatibility. If all of these sound too complicated, continue reading about the MX Player AIO ZIP custom codec package.