digidesign.com Click on the "digistore" link on the upper right">

Pro Audio Support

Q:
My Protools MP3 encoder does not work anymore or is giving me a message that my trial time is running out
 
A:
(this will cost 19.95)
Go to digidesign.com Click on the "digistore" link on the upper right of the home page
Click on the "MP3 Option"
If you are running Windows XP Choose "MP3 Option for Windows"
If you are running Mac OSX Choose "MP3 Option for Macintosh"
Press "Add to Cart" You will be prompted to register (if you dont have an account on the Digistore you will be prompted to create one)
Download file and read the .pdf installtion notes
enjoy Mp3 encoding!