DVD ejects immediately
When I insert a DVD it ejects almost immediately.
Genius Bar fixed this a few months ago but I didn't see what they did.
Help please.
MACBOOK PRO
OS X Yosemite
Version 10.10.3
2.66 GHz Intel Core 2 Duo
4 GB 1067 MHz DDR3
MacBook Pro, Mac OS X (10.5.8)