_data folders being "modified" by placing in new folder?

Special Interest Groups Audiobook Production
1

This one is more of a curiosity, but why is it that when content is copied into a new folder, the _data folder shows a new “modified date”, while the copied .aup file keeps the same date as the original file?

For example :

FOLDER X :
test.aup Date Modified Feb 2, 2016
test_data Date Modified Feb 2, 2016

FOLDER Y (created on Feb 9th) :
test.aup Date Modified Feb 2, 2016
test_data Date Modified Feb 9, 2016

Just strange, that folder showing as “modified” always made me nervous…

2

It’s due to the way the disk file system handles time-stamps. There’s a summary of how it works on FAT / NTFS (Windows) here: https://support.microsoft.com/en-us/kb/299648