Question about Toshiba DR4 DVD Recorder

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Incorrect disc My toshiba DR4 vcr/dvd recorder always reads "incorrect disc", everytime set it on DVD,no matter what kind of disc I insert. It even reads this when activated with no disc inserted. This occured while trying to record my first DVD.I have tryed every solution posted, but nothing works.

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  • red dwarf Mar 18, 2008

    Those two were the first two that I tryed. I left the unit unplugged for five days. With the "incorrect disc" problem no discs at all will play, incuding a lens cleaning disc. As I stated in my initial request for assistance, I tried every posted solution, and even a few others that I thought of, and nothing worked. The "Incorrect Disc" still flashes everytime the DVD button is pressed. I would like a solution that actually works. After further researching of this website, I read all the other complaints about this unit. I now realize that the toshiba DVR-4 has major deseign flaws. I contacted toshiba customer service and they have no clue as to a solution, nor did they seem to care. This unit cost $250.00. HELP, PLEASE!

  • red dwarf Mar 20, 2008

    The DVD-R that I used was compatible with the DVR unit, according to the manual. As I stated before, the unit will not play discs of ANY kind.As soon as you press the DVD button,the "incorrect disc" starts to flash. It also appears when opening or closing the disc tray. Hittng the "OK" button takes the "incorrect disc" off the screen, but as soon as you try the DVD it comes back on. I was told by an electronics repairman that the unit could cost up to $150.00 to fix and it's possible that it will happen again. Can anyone send me instructions so I can atempt to repair or replace the laser myself, if no one can offer a solution that works? Since the unit will NOT play ANY disc of ANY kind,I've got nothing to lose.

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Hi,

The first thing i would suggest you to do is a hard reset by unpluging the the player for 30min and then try again.

If this does not solve your problem then please see if the player tries to read the disc.
Load a disc and listen.Does the player make squealing noises or is it totally quiet? Squealing noises may indicate that the player is trying to synchronize with the disc but can't due to an obstruction on the lens or in the laser path inside the pickup or a defect in the pickup. This can also be caused by an intermittent signal problem due to a faulty ribbon cable.

Totally silent means that the photo sensor is not getting any usable input from the laser at all, meaning that the pickup is "blind" for lack of a better word.
This can be caused by an obstruction of the beam by foreign matter on the lens or inside the pickup all the way to a marginal or failed laser diode and/or photosensor array. This can also be caused by a bad ribbon cable with one or more severed traces.

You could try to clean the optics. This is the most common malfunction as far as i know in all disc players. It would involve taking the cover off and finding a way to expose the lense, and then cleaning it with a very gentle brush. some players have a cover for the lense that swings to the side during playing, this greatly reduces the chance of dust accumulating, but its still worth the try.

If you actually see dust on the lense, then its just that simple. clean, close, play.


It may also be worth your while to check on the small shafting that guides the carriage of the laser pickup. Dirt, grome, dust and solidified lubricant can cause stoppage of the carriage and the laser eye then fails to read the next track. Please refer to the image below.

incorrect disc - ad969c4.jpg


If the problem still persists then you will have to get it repaired and thats the only solution..

Goodluck..

Posted on Mar 20, 2008

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  • Master
  • 818 Answers

1) What disc do you use for record your dvd?
2) your problem seems your laser. if you read this
DVD-R discs recorded by DVD Video method can be played. Some DVD-R discs may be incompatible due to laser pick-up and disc design. that i found in the toshiba site.
Sergio

Posted on Mar 18, 2008

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Hi,

Did you try using a disc cleaner to clean the lens? Did you try disconnecting the unit for a few hours to hard reset it?

Posted on Mar 17, 2008

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Corporate egos got in the way. Unable to agree on one format, the consumer electronics industry spun out six recordable DVD formats: DVD-RAM, DVD-R(A), DVD-R(G), DVD-RW, and DVD+R/RW. All let you write to DVDs. Only –R and +R, at the moment, are readable by most consumer DVD players. And few experts are sure of the qualitative differences between the dash and the plus formats.

Posted on Mar 20, 2008

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