i got sone really good information for you from brennan.kayako.com hope it helps!
1 Push the main control knob to start the main menu, then turn the knob to scroll to USB Functions. Select it by pushing the knob.
2 Turn the knob, scroll to Export Names, and push to select.
3 JB7 will then create a file on the USB device called ‘jb7 catalogue’. The file contains the names of all the albums and tracks stored on JB7, which allows you to rename lots of tracks and album names in a convenient way.
4 In the file you will find the album name, album identifier, number of tracks and track names. Only track names and album names are able to be edited.
Note: do not change the number of lines in the file and avoid punctuation marks in the names.