superdrive fails to burn disks after el capitan upgrade

Discussion in 'OS X El Capitan (10.11)' started by NHR, Jan 14, 2016.

  1. NHR macrumors newbie

    Jan 14, 2016
    Almost immediately after upgrading a late 2014 mac mini to el capitan (10.11.2), the superdrive lost its ability to write DVDs. It is recognized by the system and can read DVDs fine, but any attempt to burn files or an ISO image to a disk fails.

    The same superdrive happily burns on the same media on other Yosemite-based macs (I checked multiple times), but it stubbornly refuses to do so on el capitan. The same mac mini was happily burning DVDs on the same media with the same superdrive on Yosemite, right before the upgrade to 10.11.2.

    Now, with el capitan, attempts to burn ISO images fail with the message:
    "Error burning disk image: The disc can't be burned; it might be incompatible with this disc drive. Please try a different brand of disc, or try burning at a slower speed."

    Attempts to burn files fail with the message:
    "The disc can’t be burned, because the device failed to calibrate the laser power level for this media."

    Any ideas on how to fix this would be appreciated.

    Superdrive hardware report:
    Firmware Revision: 1CHQ
    Interconnect: USB
    Burn Support: Yes (Apple Shipping Drive)
    Cache: 2048 KB
    Reads DVD: Yes
    CD-Write: -R, -RW
    DVD-Write: -R, -R DL, -RW, +R, +R DL, +RW
    Write Strategies: CD-TAO, CD-SAO, CD-Raw, DVD-DAO
    Type: DVD-R
    ID: CMC MAG. AM3
    Blank: Yes
    Erasable: No
    Overwritable: Yes
    Appendable: Yes
    Write Speeds: 2x, 4x, 6x, 8x
  2. camelia macrumors regular


    Apr 3, 2015
    Mexico City
    Try a clean install

  3. NHR thread starter macrumors newbie

    Jan 14, 2016
    --- Post Merged, Jan 23, 2016 ---
    Clean install does not solve it. Resetting the NVRAM did it.

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