Experiemental project to read (and maybe playback) content of Pioneer Rekordbox USB-media
Some literature to check:
https://github.com/flesniak/python-prodj-link/tree/master/pdblib
(https://github.com/henrybetts/Rekordbox-Decoding/blob/master/example-parse/src/main.c) (https://github.com/brunchboy/dysentery/tree/master/doc) (https://bitbucket.org/awwright/libpdjl/src)