Thanks. I was looking for Date Changed, or Updated, etc. And I completely overlooked Timestamp.

You can use Timestamp for that.

I want to create a playlist that contains files that were changed in the last XX days. I am making a lot of changes to my album work and I want to select all of the recently changed files so I can sync them to my iTunes for my iDevices. As of now I have not been able to find a field and/or set of criteria that allows me to create this playlist. Thanks for the help.