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OS X - Operating System General OS operation information and support

Cd/DVD drive not recognized since lion upgrade - iMac 27" 2009


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Gosso

 
Member Since: Jun 19, 2012
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Immediately after upgrade from Snow Leopard via app store to Lion my iMac won't read burnt CD's or play any DVD's.
Will mountain lion upgrade in July fix this?
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chscag

 
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It's probably coincidental that your optical drive will no longer read burned CDs or DVDs, not because of Lion. And no, upgrading to Mountain Lion is not going to bring a defective optical drive back to life. Try cleaning the drive with a can of compressed air. Blow a few short blasts into the slot opening. If that doesn't work, it's likely you'll need a new drive or buy an external drive instead.
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Thank you
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marksewell

 
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I have the same problem. The drive works perfectly when I boot into boot camp (windows 7). I can see DVDs but not CDs when I am in OS X however. Upgraded to Mountain Lion and still the same problem. I have reinstalled from scratch the operating system, and it worked at first, but now no longer works again. Can certain installed software conflict in such a way as to cause this to happen? I will be glad to post a list of my installed applications.
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