Why doesn't os x update folder dates when new files are added to it via subfolder. Eg. I imported an audio CD to iTunes. I couldn't track the imported songs down because no folder updated itself to today's date. As I normally expect any folder date would be updated to the last known date it was modified. I finally tracked the imported files to a folder titled Unknown Artists which has a date of September 2, 2009. But when you open that folder you can see another folder titled Unknown Album, and that folder has today's date. Why doesn't the host folder update as well?