Since there is no standard here, you can understand why such doesn't exist.
It's like trying to find a spare tire that fits your car and my car.
I've seen many (freeware) software that will transfer your music from an ipod to the computer, but I have yet to find one that will do that for any other type of mp3 player. Anyone out there know of such a software? Note I'm looking for freeware, but any info at all will help. Thanks.