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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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6 Suggested Answers

  • 1003 Answers

SOURCE: DVD Recorder/Player won't accept DVDs

I think your Laser Lens or drive needs to be cleaned

Posted on Jan 14, 2008

  • 1003 Answers

SOURCE: Unknown disc error message



Posted on Feb 02, 2008

  • 98 Answers

SOURCE: player won't read a DVD

Sounds like a bad pick up assy (Laser)

Posted on Nov 25, 2008

Mike Adams
  • 19 Answers

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

Testimonial: "Thank you, that might be the answer."

  • 300 Answers

SOURCE: DR-MV150B DVD Video Recorder, DVD plays back OK on

Insert one of the recorded disc and try to finalize. If it accepts, that means they are not finalized.

Posted on Jan 19, 2010

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Dear Kjwj,

Maybe the player laser lens is dusty. You can try cleaning it with a CD/DVD lenses cleaner disc, like the one shown in the link below:

I cannot provide info regarding the service mode codes because no information regarding the DVD player (brand and model) was provided.

Hope you may find this information useful!

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Miguel Luiz Martins

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DVD-R and DVD+R should play once recorded and finalized. RW of any kind is iffy and must be tested to see if they will work.
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Does the machine record on to + or - DVDR?
If it does both try each type. Also try high quality discs, some of the cheaper types won't work. Try it on different speeds too.

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My LG RC797T DVD deck does not recognize pre-recorded DVDs. Error message: "Unknown disc". DVD recorder works fine and playbacks of recorded disks are OK. But it won't playback any pre-recorded movies,...

im sorry i dont have a solution to this problem, but i tried the exact same thing and got that 0xE0 key problem, so my dad and i decided to unplug the unit and plug it back in and now the unit will not respond to the remote. did you have this problem at all? and what did you do to exit the setup screen?

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Samsung DVD-V$357 recorded dvds won't play on other machines

Did you finalize the disk? If not, this should solve your problem. When the disk is finalized you should be able to play it on your computer if you can play other DVDs on it. Some other DVD players can only play specific disks (i.e. DVD-R, DVD+R). This may be another problem.

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