Limewire files can be opened with a program called MPecker Drop Decoder. Its a program from Proteron.
www.proteron.com or do a search on google. Its available as shareware. I'm using OS 9.2
The only catch is that it converts the files into AIF audio format which is quite large but then you can burn an audio CD. If you wanted to I suppose you could then convert them back into MP3. I know its not perfect but its works.
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