The hard drive is well protected from the zipper (opening + closing the pocket) by a circumferential padding, but the interior compartment for storing cables etc. can also be closed with a zipper. In itself a good idea, but unfortunately me the zipper slide has just that zipper, more specifically now scratched my external HDD. The zipper including carriage lies directly on the protected disk in the closed state of the bag. Some pressure from above and below (eg during transport in a backpack filled) and you will find a few "nice" scratches on his hard drive. Especially if you were in a hurry and has the zipper not closed completely and the carriage was in an even more unfavorable position.
Why do I need such a case, especially since they always can not really protect against falls from height over 1m?