I have a large library of self-ripped music from way before ipods & IOS. The library is organized as a folder tree with the tracks from each album in the lowest level folder. Many of those MP3s have inadequate (for iTunes) ID3 tags. Although I have attempted to re-tag some of the library, this is far too frustrating and tedious - I wont do any more of that. So what I want is, 1. an IOS music player app that is happy to navigate and play music organized in folders/MP3_files. 2. A non-itunes oriented app or application that can copy a folder tree from a computer drive or SD card to the IOS device, keeping the same folder/file organization.