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I have a Panasonic DMR-EX78 DVD player/recorder. I tried to copy a Hard Drive recording to CD a month ago but it failed and ever since I haven't been able to play DVDs or CDs. A 'D' sign has appeared on the display and the unit now takes a lot longer (one minute) to start up (power mode is set to same as was before). If I try to play a DVD or CD it comes up with a message say 'Cannot read - please check the disc', and the no entry symbol displays in the top right corner (red circle with red line through it).

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  • simon1105 Jan 03, 2011

    The problem is not a Hard Disk problem as I can still record new programmes to the Hard Disk, watch, delete etc from the Hard Disk. It just won't do anything with DVD or CD discs.

  • simon1105 Jan 03, 2011

    Thanks ginko, but i don't think the problem is to do with the Hard Disk as I can still record new programmes to the Hard Disk, watch, delete etc from the Hard Disk. It just won't do anything with DVD or CD discs.

  • simon1105 Jan 03, 2011

    I didn't give your comment any rating - and I definitely didn't want to offend! I'm new to this. Sorry if I have somehow given a rating through unknown ways.

  • simon1105 Jan 09, 2011

    If I try to copy anything from the hard drive to a DVD it comes up with the following message - 'cannot copy, this is a non-recordable disc'. It does this for DVD-R and DVD R discs.

  • simon1105 Jan 09, 2011

    Ah, the discs I have don't say they are double layer - I assume it would say it on the CD? I have Datawrite Red DVD-R. I didn't realise they had to be double layer. I tried the R just incase.

  • simon1105 Jan 09, 2011

    thanks, will try that and let you know how I get on.

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Hi.

The unit is telling you that the internal hard disk is damaged. Startup is slower because the player try accessing the disk.

First try a power reset by disconnecting power cord for ten minutes.

After that , if the unit is still looking for the hard disk, try a reset (see page 59 on manual). The format will delete any file stored in the hard disk. The only way to recover the files in this situation would be by removing the internal hard disk and mounting it on a different device.

If that does not work, you can try reinstalling the firmware. Before reinstalling Firmware call Panasonic and check your warranty status. Firmware update presents some risk if not done correctly, and may affect warranty status. Ensure that you follow instructions while updating firmware. Ensure that you also select correct region.
Here link to the update.

If that does not work, then the internal 250GB hard drive may need to be replaced.

Posted on Jan 03, 2011

  • 2 more comments 
  • Ginko
    Ginko Jan 03, 2011

    Well, in that case the unit is looking for a disk whose recording was not complete. I would do a firmware update in any case. That will probably fix the problem.

    I see that my comment received negative rating. Sorry about your decision. The question will be passed to a different expert.

    Goodbye.

    Ginko.

  • Ginko
    Ginko Jan 03, 2011

    Hi.

    LOL. No offence taken. It is just the way it works. If you ask to other experts you refuse the expert assisting and question gets unlocked again. The expert that has been refused gets two thumbs rating.

    It is a problem with Fixya system design.No worries, nobody will die because of this. Your question is currently unlocked.

    All the best.

    Ginko.

  • Ginko
    Ginko Jan 09, 2011

    The unit only supports DivX on DVD-R, -RW, -RW DL, CD-R, CD-RW. Ensure that the problem is not only with +R, or that will be normal. Ensure that the disks are double layer.

    If the problem persists and occurrs with every disk, then as said the disk drive unit is defective.

    Regards.

  • Ginko
    Ginko Jan 09, 2011

    Hi.

    Please give a try to different -R (or -RW) types. Sometimes an optical plaer or rewriter may not work well with a determined kind. This particular model will also have problems with most +R disk types.

    All the best.

    G.

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