Combo drrive MATSHITA CD-RW  CW-8123: keeps ejecting cds and dvds

hi my combo drive just keeps ejecting cds and dvds is it broken? can it be fixed if so? or will it need to be replaced?

I've found a fix for this. The problem is that the Combo Drive won't recognize any DVD-ROM or CD-ROM or even blank CD-Rs. There's a Apple Knowledge Base article that tells you how to reset the PMU or Power Management Unit. In my case my "12 PowerBook G4 1.5 GHz with Combo Drive wasn't recognizing the bundled iLife '05 DVD-ROM. Resetting the PMU fixed it & allowed the PowerBook to recognize the iLife '05 DVD-ROM. Here's a link to the Knowledge Base article with instructions on how to reset the PMU: http://docs.info.apple.com/article.html?artnum=14449.

Similar Messages

  • Why my macbook keep ejecting cds or dvd

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    Have you tried starting up while holding down the Option yet? That should prompt the Startup Manager window.
    To install from the DVD disc, startup while holding the C key down and inserting the install disc at the same time.

  • My macbook keeps ejecting the install dvd at restart???

    my macbook keeps ejecting the install dvd at restart???

    Try zapping PRAM. Hold down the cndopt+RP keys on restart (with the Leopard disk in), and release them after 3 "bongs". Then, immediately hold down the C key.

  • My imac keeps ejecting cds (new ones). Fixes anyone?

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    Check Finder > Preferences > General
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    USMCwife-
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    Usuallyexasperated wrote:
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    Message was edited by: Usuallyexasperated

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  • Mac mini mid 2010 hard disk keeps ejecting itself

    My mac mini is set up with two sata disks installed, one is a 128 ssd and the other a 1tb hdd.  Since installing mountain lion, the hdd keeps ejecting itself, and i get a message saying - this hard disk was not properly ejected. then i wont find the disk in finder, or disk utility!.  I then have to remove the hdd from the mac mini and plug it into a usb caddy, which finds it no problem, and then when i put it back in the mac mini, it works again!! so the disk is not faulty i dont think.  It then works for a period as random as a few hours, to a few weeks and then i will randomly get the "this disk was not ejected properly" message and it has again dissapeared.  I use the mac mini as a media centre and it isnt really being pushed hard when the failure happens.
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    Hello, Sorry for the late reply.
    When i open console after the ejection i get the message:
    01/11/2012 22:32:42.000 kernel[0]: Failed to issue COM RESET successfully after 3 attempts. Failing...
    01/11/2012 22:32:42.000 kernel[0]: disk1s2: no such device.
    Hope this gives a clue, i'm tearing my hair out over it.  there is absolutely nothing wrong with the disk itself.
    If i do a full shutdown and restart, it finds the disk again no problems, but if i simply choose to restart from the menu, it does not find the disk again.
    Thanks for any help you can give on this.  I have only been experiencing this issue since i upgraded to mountain lion.
    Drive information:
    SAMSUNG HN-M101MBB:
      Capacity:          1 TB (1,000,204,886,016 bytes)
      Model:          SAMSUNG HN-M101MBB                     
      Revision:          2AR10001
      Serial Number:          S2R8J90B815515     
      Native Command Queuing:          Yes
      Queue Depth:          32
      Removable Media:          No
      Detachable Drive:          No
      BSD Name:          disk1
      Rotational Rate:          5400
      Medium Type:          Rotational
      Bay Name:          Lower
      Partition Map Type:          GPT (GUID Partition Table)
      S.M.A.R.T. status:          Verified
      Volumes:
    disk1s1:
      Capacity:          209.7 MB (209,715,200 bytes)
      BSD Name:          disk1s1
      Content:          EFI
    living room:
      Capacity:          999.86 GB (999,860,912,128 bytes)
      Available:          648.66 GB (648,662,093,824 bytes)
      Writable:          Yes
      File System:          Journaled HFS+
      BSD Name:          disk1s2
      Mount Point:          /Volumes/living room
      Content:          Apple_HFS
      Volume UUID:          D6125397-BAE7-3496-9B9C-6534EEE0B660

  • Mac Book / 10.5.2 ~ Keeps ejecting CD-R but DVD's seem okay.

    Hello there,
    My apologizes, I know that there are different threads throughout several discussions on this or something that may seem very similar but regrettable I have not been able to find a solution.
    I have a first generation Black MacBook running 10.5.2, I had a problem with my drive and in November Apple replaced it under apple care. Currently I have a :
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    Firmware Revision: HBEA
    Interconnect: ATAPI
    Burn Support: Yes (Apple Shipping Drive)
    Cache: 2048 KB
    Reads DVD: Yes
    CD-Write: -R, -RW
    DVD-Write: -R, -RW, +R, +RW
    Write Strategies: CD-TAO, CD-SAO, DVD-DAO
    Media:
    Type: CD-R
    Blank: Yes
    Erasable: No
    Overwritable: Yes
    Appendable: Yes
    Write Speeds: 8x, 24x
    The problem has a few different elements:
    1. When I insert a CD-R disc that I know works (tried on a windows box), I get the standard Finder Message saying "You Inserted a blank CD. Choose an action from the pop-up menu or click Ignore." I click Eject and try again with the same result each time.
    2. When i try to record my own CD-r from a new spool it looks like it will burn but I get an error saying "... calibration problem . . ." and the disk fails.
    I have tried to reset my PRAM no luck
    I have tried to hold my MacBook upside down no Luck
    i have re-installed 10.5.2 combined update. no luck
    Checked the disk and permission . no luck.
    If you are able to offer any advice it would be greatly appreciated.
    Thank you in advance for you help and any reply you may offer.
    In Peace,
    -h

    Re: Mac Book / 10.5.2 ~ Keeps ejecting CD-R but DVD's seem okay.
    Posted: Mar 14, 2008 9:25 PM
    Did this happen right after you got it back from Apple?
    No it did not had burned over 50 disks before it began.. Started within the last 2 weeks. Cannot recall any particular change I made to the machine to prompt or trigger this.
    If so, you should of sent it back then.
    How long did you hold it upside down? The entire sequence.. Stated upside down. Put the disk in.. waited till i saw the Dialogue Box then turned it over in total about 10-15 Seconds.
    When you say tried to reset pram, did you successfully do this? I believe so. .The machine restarted and beeped then went over the inital start up chime again. So i bleive it was successful
    Did this start after you installed Leopard? I have only been using Leopard since I got the replacement drive. I thought 10.5.2 could have triggered it but no confirmation.
    What brand of disk are you using?
    Several including (imation, datawrite, princo) I know you will likely comment on the names of the disks. but i do not believe it to be the disks as even with the quality ones it is the same problem and when i place a burned disk in the drive it still thinks it is blank.
    Thanks again for the help.
    h

  • I'm trying to upgrade from 10.5.8 to Snow Leopard but my macbook keeps ejecting the disc.  It started to install the first time and said it needed to restart to finish, restarted but ejected the disc.  It ejects every time now.

    I'm trying to upgrade from 10.5.8 to Snow Leopard but my macbook keeps ejecting the disc.  It started to install the first time and said it needed to restart to finish, restarted but ejected the disc.  It ejects every time now.  I've also installed the 10.5.8 combo update but that didn't help it.  I've tried restarting the macbook with the disc in, holding c, all that.  Why won't this work?!

    Zap the PRAM and Reset the SMC, then try again.

  • My macbook keeps ejecting iLife 11 family pack

    My macbook keeps ejecting iLife 11 family pack  disk?

    The drive accepts discs but they do not mount or are automatically ejected
    Check the disc's surface for scratches and dirt, since these things can prevent the disc from appearing on the desktop.
    Reset the Power Manager (PMU) or System Management Controller (SMC).
    Ensure your drive can read the specific type of disc being used. For example a "combo drive" can read a DVD-R and burn a CD-R however it cannot burn a DVD-R. The utility System Profiler may provide additional information regarding what media your computer supports.
    If the discs continue to not be recognized, please contact Apple, contact an Apple Authorized Service Provider, or make an appointment with an Apple Retail Store for additional troubleshooting, evaluation, or service.
    http://support.apple.com/kb/ht2801

  • Drive Keeps ejecting out ALL Discs....

    I replaced the original with a superdrive from macsales.com due to the same problem and it still keeps ejecting all discs i put in. Once in awhile it will sound like its reading but then ejects it out again. Anyone have any solutions?
    Drive Info:
    MATSHITA DVD-RAM UJ-875S:
    Firmware Revision: 1.00
    Interconnect: ATAPI
    Burn Support: Yes (Generic Drive Support)
    Profile Path: None
    Cache: 2048 KB
    Reads DVD: Yes
    CD-Write: -R, -RW
    DVD-Write: -R, -R DL, -RAM, -RW, +R, +R DL, +RW
    Write Strategies: CD-TAO, CD-SAO, DVD-DAO
    Media: Insert media and refresh to show available burn speeds

    Do you mean you "replaced" using of the internal drive by connecting an external drive? Therefore, you are still able to try using the internal drive...?
    To rule out a software-related cause, you can try this test. Start up with Option key held down. This will give Startup Manager, where you will see your startup disk options. That screen comes up before the OS loads. Insert your Mac OS X installation disc at that screen. If the drive hardware is working, the Mac OS X installation disc should appear in Startup Manager as a startup disk option. However, if it does the same thing with eventually ejecting the disc, then it is likely that the internal drive mechanism itself is faulty in some way.
    There are optical drive cleaning kits that may be helpful, if the problem is accumulated dust inside the drive.

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