For this DAP, I only use MP3 files so with a 256 gb card I have lots of room. What I have done is to create a new "album" in my managing music software. I use mediamonkey. I then create a new Genre. I put all my new "albums" in this genre, and now I can have multiple playlists to run. Yes it duplicates files, but mediamonkey makes it easy to manage, and these simple DAPs are far easier to operate thru albums and genre than thru playlists.