I ended up spending most of tonight doing system maintenance instead of coding, but I was able to find after some false starts, I found a great tag decoding library called getID3. It only took me a few minutes to get up and running and processing. I have a test script up. If you upload an MP3, it’ll spit back some information. I’ll be working on it in my spare time, it doesn’t look like it’ll be too hard to turn this into a tool that will edit your tags and roundtrip the file. (Not very practical, more a proof of concept than anything).