I was one of those who could not burn files downloaded, but now life is better. I installed iTunes, which you can download for free from the Apple site. It can convert the files! It will allow you to burn them onto a CD. I had to go through a succession of system upgrades to enable me to use iTunes. It will only run with System 9.0 and will only burn CDs after you've upgraded to 9.2. I think that's right. Anyway, I emailed the system guy at Limewire, and he admitted that they've known about this problem for a while. They don't seem to be completley on top of some aspects of designing for the Mac platform. iTunes worked for me. One nice thing iTunes does, is that it allows you to set up different lists tunes. You can place the tunes in order, listen to them to make sure you like the selection, then burn the list to your CD. It doesn't seem to have a music seach and download function, so Limewire is still needed. I reverted to the older version of Limewire, too. Good luck!