Question about Panasonic (UJDA750) CD-RW/DVD-ROM (Combo) Burner

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DVD/CDRW drive not recognising any DVD's

I have a Toshiba Satellite A10 with a matshita ujda750 DVD/cdrw combo drive. For some unknown reason it does not recognise DVDs. Basicly when I insert a DVD it's as if there is no disc in the drive. Interesting enough I can still burn & player standard CD's. I have uninstalled the drivers and windows detects the drive & reinstalls the drivers, and this doesn't fix the problem.

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Re: DVD/CDRW drive not recognising any DVD's

Hi people!!

This fixed my problem. Give it a go, I have access and am using my burner once more.

Good luck!!


Note: The solution provided requires editing of the registry.

  1. To begin the process, start the Registry Editor.
    • Click Start, click Run, type regedit, and then click OK.
    • On Vista machines, Run is accessible through Accessories.
    • Click the plus sign (+) next to the following folders in the left side of the window pane:
    • SYSTEM
    • CurrentControlSet
    • Control
    • Class
    • {4D36E965-E325-11CE-BFC1-08002BE10318}
  2. Look for any of the following names in the right side of the window pane:
    • UpperFilters
    • LowerFilters
  3. If any of the items above are listed, right-click on the item and select Delete.
  4. Be sure to restart your computer after you have deleted the files in the registry.
  5. Open My Computer (XP) or Computer (Vista) and check to see if your CD or DVD drives have returned.
  6. In some cases, you may need to reinstall some programs such as CD or DVD burning software, iTunes, or Nero

Posted on May 17, 2010

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Re: DVD/CDRW drive not recognising any DVD's

This is a software problem I believe since I have the same problem, but I was able to partially fix it.
I suddenly lost the recognition of the laptop built in Matshita UJDA760 CD drive, it was not recognized by in "my computer". I went to a forum and downloaded a file:"sa55audiox.exe" from
Now it recognizes my CD drive. I uploaded new audio drivers from Toshiba. I can now see my CD drive in My computer". read files off my CD drive but when I run Itunes or play music CD, I can see that the music is being played in grahic equalizer, but now sound. Well at least I got my CD drive recognized. Hope this helps at least half way.

Posted on Feb 02, 2009

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Re: DVD/CDRW drive not recognising any DVD's

I am not 100% on this but in some drives there is a dual laser, one dvd the other cd, and the dvd laser may be worth tryng to clean with a cd cleaner, but, if yours only has the one, it maybe that the laser is faulty. The reason why it can read cd's is that the trackes are much wider apart and make it easier for the information to be read, but when it comes to DVD's the tracks are much closer and difficult for the laser to read, especially if missaligned.

Posted on Mar 23, 2007

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My matshita ujda760 dvd/cdrw read and burn cd but can't read dvd rom. I uninstalled the drivers and reinstalled but the problem continue.

Close all open programs

Click on Start, Run, and type regedit and press Enter
Click on the plus signs (+) next to the following folders







This folder is the DVD/CD-ROM Drive Class Description in the registry. Look for any of the following names in the right hand column.

Upper Filters

Lower Filters

Upper Filters.bak

Lower Filters.bak
If any of the above keys shown in step 4 are listed, right-click on them and choose Delete

After deleting the keys, close the registry editor
Reboot your computer

Open My Computer and check to see if your CD or DVD drives have returned. You may also want to open Device Manager and verify that the yellow exclamation and error code on the CD or DVD drive is gone.
hope this helps

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