I've noticed that OS X seems to flag a USB drive as needing to be scanned until it is ejected. More than once I've copied files off a USB device and unplugged w

I've noticed that OS X seems to flag a USB drive as needing to be scanned until it is ejected. More than once I've copied files off a USB device and unplugged without ejecting and as soon as it's plugged into windows it comes up with scan option. It does get you into the habit of ejecting the drive first