iMac can't calibrate laser on media - won't burn DVDs

Discussion in 'iMac' started by Applespider, Feb 27, 2008.

  1. Applespider macrumors G4


    Jan 20, 2004
    looking through rose-tinted spectacles...
    I have a month old 24" iMac running 10.5.2.

    When I try to burn a DVD, I get a message that the device can't calibrate the laser for the media. The console log shows the following...

    It's good quality Verbatim DVD-Rs (the media ID comes up as ID: MCC 03RG20 in System Profiler which apparently is first class media) that I get the message on. I've also tried a TDK and a Sony -R just to check and get the same message.

    I took two of the DVDs to an Apple Store and tried burning them. They burned without a problem in the iMac there.

    Anyone got any useful suggestions? I did buy it from John Lewis so am just within the 28 day return period to get a brand new iMac shipped except for the hassle of having to transfer everything and wipe it again. Trying to get hold of UK Applecare at a time when I can be in front of the iMac is proving tough! :rolleyes:
  2. wilfried macrumors member

    Jan 9, 2008
    This may sound beyond stupid, but have you rebooted your machine? It's happened to me a handful of times, and I simple reboot fixed the problem. The first time was a week after I got my iMac, it was my first DVD burner and I had a total panic, futzed, fiddled, eventually rebooted for some unrelated reason, and then it burned just fine.
  3. Applespider thread starter macrumors G4


    Jan 20, 2004
    looking through rose-tinted spectacles...
    I'd tried that with still no joy.

    I gave Applecare a call this morning who talked me through resetting the PRAM, ended up with a different error message then that it couldn't verify the media although it did burn.

    We started a new account and managed to burn one there but the drive scratched the disc quite badly on the way out so he's put it down as needing repair if I can't get it exchanged via the retailer.

    However, since it had worked in one account, I did then go back and retry in the first account with a new file in a new burn folder and ta da... it worked.

    So will try another one tonight when I'm home again and if it seems OK, I'll just put it down to a weird set of circumstances. At least the problem is logged with Apple so if it does die again, hopefully it can be sorted out quickly.
  4. Polska macrumors member

    Mar 9, 2008
    Rio de Janeiro - RJ
    DVD+R DL RW with the same error

    Just a quick question. Did it happen again? I'm a bit worried because I'm not able to burn any double layer DVDs. I tried different medias from the same package (EMTEC DVD+R DL RW) with Toast 9 and Mac OS Disk Utility but I keep getting the "The Device failes to calibrate the laser power level for this media.) I already managed to burn normal DVD and CD even through Fusion using Windows XP. Any idea what can be happening? I will buy a new media from another brand just to test but I find it rather odd being the media.

    Erick Pessôa
  5. mnemonic02 macrumors newbie

    Jan 4, 2009
    how about this?

    Unfortunately I have no solution but I swear I have tried EVERYTHING except replacing the burner.

    I have a brand new Macbook it at the end of 07. Only a year old. I am using Memorex DVD-R DL disks to try and burn a copy of Leopard (dmg). I have used the Disk Utility as well as Toast. I have tried resetting the PRAM. I tried restarting several times. I tried moving "English" on the list and then back in the international settings in system prefs. I highly doubt my hardware is bad b/c this is the first time trying to use it to burn a DVD. I've used it about 5 times burning just audio disks and like I said, stuff doesn't just automatically go bad being a year old and barely using it. (Give mac a little more credit)

    I haven't tried cleaning the lens yet with a drive cleaner so I'm pretty sure that may be the problem, yet I have no idea how a piece of dust can get inside and right on the's pretty well guarded. I WILL NOT talk to technical support at Mac cuz I feel all tech support people never know wtf they're doing unless it's actually happening to them.

    Freak problems...gotta love them...why can't it just work so I can go on with my life.
  6. JNB macrumors 604


    Oct 7, 2004
    In a Hell predominately of my own making
    I just had the exact same problem this weekend on my mid-2007 2.16 MB; no-questions free replacement of the SuperDrive under AppleCare. Would've been a $446 repair otherwise.

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