Comentário oficial
Yes, absolutely.
BUT!
If you use the same drive as your source and export, it will require double the space for whatever music you export.
Personally, I keep all my music on one external drive, and use a second drive as my rekordbox export drive (with database on it). This allows me to use my main music drive when working with rekordbox, and the export drive when working with players, without having a doubling-up of the used space.