My solution to this has been to record one full MP3 and several track based MP3s, with my own fade-in and fade-outs. Really messy...

That's not messy at all, that's a great way to do it. And MP3Trim has just added the ability to create a fade in/out effect directly upon an MP3 file, so the process of doing this is fairly painless now.

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Tony Fabris