Hi. Is it possible to put mp3 files and mp4 files in one Playlist

Currently, no, sorry. This is because only audio files can be exported to a USB device for use with products in stand-alone capacity, and if a DJ expected that a playlist full of audio / video (mixed media) would all be exported, only to arrive at the gig, plug in the USB and find just the audio files were exported, it would be a bit of a nightmare.

Our engineers are aware of this complaint and are working to provide a solution, however we don't currently have a timeline for implementation.