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LG RC797T _Finalized dvds will not play on dvd recorder that recorded it.


Dvds that are recorded on this LG RC797T will not play back in this unit nor will it play in my other LG DR1F9H. But it will play in my other dvd players models ( Philips,RJTech & others).
It will play any recorded dvds from my other dvd recorders also the ones that are purchased. But not the ones that are recorded in this unit.
Insert the recorded dvd the LG RC797T reads it, displays on TV screen "VIDEO" and ejects the disc and says unknown format or disc error.

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  • Sula2 Apr 08, 2008

    All of a sudden the dvds I've recorded on the LG DR1F9H will not play back. It does play on another player that we have. I have tried disconnecting the unit for a few minutes nothing changed. The message I get is "unknown disk check disk"I use the DVD+RW.

  • kickabuck May 04, 2008

    This will not play most disc. It just says "read" for a couple of minutes then ejects the disc.

  • Anonymous Nov 29, 2008

    Same problem here, Ive only had it for a few months and NO movie will play on it, it says "UNKNOWN DISC CHECK DISC" It only plays JPEG format discs.

  • Alan Atkinson Mar 09, 2009

    when o when are we going to find a cd/dvd that will play on any model/make machine,there are so many different formats no wonder it wont work!
    i have just spent a day editing my daughters wedding photos using windows movie maker,plays back fine on computer,but the other 3 dvd players i have around the house say disc empty!!
    we had video tape- betamax or vhs,i think the later won at the end of the day,wonder how long this battle is gona be..i give up...



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I think your Laser Lens or drive needs to be cleaned

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SOURCE: player won't read a DVD

Sounds like a bad pick up assy (Laser)

Posted on Nov 25, 2008

Mike Adams
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SOURCE: player will not read dvds

Get into the Service Menu by entering 1397139 on the remote control like you did before and restore the original factory-set values stored in flash-memory back the way they were. One you do this your unit will function properly again.

Original factory-settings

Option1: F2
Option2: 15
Option3: 93
Option4: CF
Option5: 94
Option6: C0
Option7: 04
Option8: 15

Posted on Nov 26, 2008

  • 7 Answers


Check the model specifications for your device. Some players will only accept DVD-R and not DVD+R or not DVD+RW discs. I know it all seems the same, and it's very frustrating, but many companies restrict the type of discs they will allow. My player does +R but not -R. It should still be able to read DVD discs that you made yourself, but they will be of a different type.

Posted on Nov 03, 2009

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