Playlist Accessible Tracks.pla

I see an entry under Playlist named "Accessible Tracks", when I open it I see a lot of empty lines and some lines are filled with file names of music tracks.

When selecting a line (empty or not) the player hangs for about 20 seconds and then suddenly the player begins the play a random song. Another 20 seconds later the same random song starts over again and the player is responsive again.

When browsing I also see the file " Accessible Tracks.pla" in the Playlist directory.

I have had this file with FW 2.002.3 and again with 2.003.2. I have deleted it earlier but now I am wondering why and what this file is for, anyone?

I neither have this file nor have I heard of it. I'm sorry. Sounds senseless anyway