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macrumors 601
Oct 3, 2006
Is this an inherent flaw in external optical disc drives on OS X or what?

That is how is is designed in Mac OS X and has nothing to do with the drive being external. Just because you don't like it does not mean that it is a flaw.

OSX ≠ Windows


macrumors 65816
Dec 18, 2010
OSX treats any physical DVD/BluRay/CD the same as a hard drive, they are all disks with data on them, so it mounts them as a DMG. You have to unmount it before turning off the power or ejecting it from the external drive.

No model of drive or workaround will change that. If it were an actual hard drive, turning it off or pulling the cord out of the Mac could damage the contents of the drive, which is why Macs require you to unmount a drive. Windows does the same thing with hard drives (including flash drives), but doesn't with DVD/BluRay/CD's. This is just one of the things that is different between the two OS'.


macrumors newbie
Original poster
May 14, 2013

I didn't know that about Mac.

Thanks, Eric Roberts (after all you are "The Coca-Cola Kid", arent you?).

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