* Load your Registeration
* Press PLAYER 1 to display the files in your drive
* TOUCH the file you want to link ONCE (Mp3, Pdf... etc)
* Press SAVE and touch REGISTRATION link
* Touch SAVE
But you have to make a Registration with the MP3 in it first, right?
No. You have to make the registration first and save. Then "link" it (already existing) to a file type of your choise (pdf, mp3, wave, mp4....etc).