People sometimes think of DRM as solely a means to prevent copying, but the fact is that it directly obstructs other legitimate work.
Apple’s recent update in … Mac OS X is … disables crucial features in video-editing software.
Attempts to export videos from many applications after the update results in a DRM permissions error.
Worse yet, it is not possible to roll back to a previous version of QuickTime without doing a full operating system reinstall. The supposed system upgrades are actually people from exporting their preventingown video.