Reply to Weird Question: Importing Track Release Dates

Hello All,

As I alluded to above, I have a weird question. I moved all my itunes media folder collection to an external hard drive and in the process managed to lose all of my import dates. Having now no idea of which track is old and which one is new, I was hoping that someone here could shed some light on possibilities for running some sort of batch music detection software that would figure out the release dates of my tracks and then import them and tag them in my music collection. I am running itunes, Rapid evolution 3 (used for key detection), and traktor.

Any ideas? Thanks in advance guys.