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  1. #1


    Member Since
    Jun 19, 2012
    Posts
    2
    Smile Cd/DVD drive not recognized since lion upgrade - iMac 27" 2009
    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?
    Gosso

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Keller, Texas
    Posts
    50,202
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, Sierra
    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.

  3. #3


    Member Since
    Jun 19, 2012
    Posts
    2
    Thank you

  4. #4


    Member Since
    Aug 12, 2012
    Posts
    1
    Me too!
    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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