I have no idea how, but I seem to have lost my m2 ssd where most of my music was has been stored. I would have plugged in that drive in before starting engine dj on my pc and it work great.
In a crazy lucky twist of fate, few days before I lost my drive, I wiped my prime 4 drive, and then exported all my music to it. (around 15K tracks)
Now my question is, how best to proceed to rebuild my collection from exported prime 4 ssd to keep return folder/playlist structure?