I've had exactly the same on non-OEM disc copies. One day they work, the next they don't. No idea why other than it seems the drives can be fussy about the disc types. Now I only use OEM discs.

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Me:
Current: 2011 E71 40D Vermilion Red/Beige Nappa

Wifey:
Current: 2012 R80 Countryman SDX Green/Cream