Reply to Rekordbox + CDJ question

right, i'm going to have a gig tomorrow and i'd like to play some tunes off an USB stick, and i'm not sure on how this is going to work

after i export the rekordbox prepped tracks to the USB stick, will the cdj read only the files in the RB folder/from the RB library? i have some more music on the stick, but i'd like the CDJ to ignore them and only use the RB files.

edit: obviously i can backup the files and delete them from the stick, but i don't really want to do that