Thanks very much for creating MiniDLNA it is a great piece of work. MiniDLNA has recently taken over video and photo streaming duties (from Mediatomb) in my house :-)
Would you consider adding playlist support to MiniDLNA such that .m3u and .pls files are imported during a scan. In much the same way MiniDLNA creates genre folders from the tags in the audio files, it could also create new folders based on the content of the .m3u/.pls files? Mediatomb does have this feature and it is the only reason I've not fully migrated to MiniDLNA.
I have virtual machines running MiniDLNA latest CVS on 32-bit and 64-bit Linux. I will be more than happy to help with testing and feedback.