We received some suggestion from users, they hope the Mr.DJ can support playing AAC (.m4a) audio files. Indeed, Mr.DJ supports AAC audio files. Unfortunately, due to the licensing problem, we can’t redistribute the module with Mr.DJ directly. But however, you can download it and install into Mr.DJ manually. You can download the module bass_aac24. Once you done, unzip the bass_aac.dll to the directory mrdj.1.0.xplugins, and restart Mr.DJ. Then you can now play m4a files with Mr.DJ. Following is a figure demonstrates how to do.
Per to the license of BASS_ACC, it is not legal to redistribute Mr.DJ with the BASS_ACC plugin, for example, you shall not pack Mr.DJ with BASS_ACC together and upload them on Internet, let others download it.