hello Dick,
i appreciate you replying so soon.
i originally copied the audio tracks from various cd,s and used the record feature on the sd jukebox screen.
i arranged them in various folders depending on the type of music so that i would be able to play various types of music at different venues.
i then used the checkout button on the sd jukebox to transfer the songs to the sd-card and everything went smoothly until i bought a new laptop.
after i had obtained a larger sd-card,
i thought that i could just checkout the songs to the new card and although they appeared on the keyboard screen, there
was no sound though they seemed to be playing according to the keyboard screen.
the program only allows files to be checked out three times so is bit of a hassle.
i have not tried making a copy yet from one sd card to another but i dont think that would work either as you have found a few limitations yourself.
i have tried different methods to transfer from one folder to another but with no success.
you will see another reply to my query so i think that answers the question but if you find another solution in the meantime, please let me know.

ROCKY.