Hi

Your machine can describe files in a variety of ways (I have not previously encountered files described as Limewire Documents). However, if they are MP3 files, they can be played by iMusic. Use the Add to Library function and they should play. To reduce the difficulty in the future, go to iMusic Preferences and make sure that iMusic is the default format for internet downloads.

If that does not work, use the "Get Info" function tell us what files have actually been downloaded. There is some cool software around that can modify file formats but more information is needed at this point. What machine have you got, which OS, which version of LW?