Re: How to crrect the no valid disc error when they play...
Different players have different focal ranges, or just different optics. Some discs are right at the edge of being playable in a certain player because of their tolerances (like, thickness to the recorded surface from the outer surface that affects the focal range required). With normal wear and tear, these discs will become unplayable sooner in a player in which they're marginal than in players in which they have a good range of focus.
That being said, do any discs play in that problem unit? I assume they do, but if not, it could be the playback laser diode.
But if they're not playing because that player doesn't have as good detection or focal range as the other players there's nothing really you can do about it. You can try polishing the discs but it may be a lost cause.
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Tries to play more than one DVD disc.Tries to play many DVD disc should be original DVD disc ok no DVD+R copying disc ok.If ur are still getting signal just saying loading signal awhile than say no disc show up, and u did playing it with many dvd original disc.Than the DVD player laser eye reader could be ditry.Tries websites like Amazon.com,Ebay.com to buy a DVD disc set that said like DVD players lasers eyes cleaners.Used it as directions said,if u still getting the same result mean ur DVD player laser eye reader it is dead,not worth repairing the DVD player if the DVD player laser eye reader it it dead,because the laser eye reader it is 90% important to the DVD player unit and the cost of it by replacing it will cost the same as a new DVD player unit.
Sounds like she has a wii modchip or something installed. Otherwise, you either have a bootlegged Super Mario Bros. disc or there's something wrong with the Wii disc drive. I'm assuming you went through their online troubleshooting support. If you still have a valid warranty, you can send it over to Nintendo Repair and they'll fix your Nintendo Wii up good as new for no charge at all. Not even shipping!
Just open the tray close it clean the disc turn it inside again it will work, i alway get this with CoD:WaW. But with all my other games it just works fine maybe there is something wrong with your disc and the console cant read it change it for another one sell it and buy a new one or just try my solve problem. Hope this helped!
Sorry to be the bearer of bad news, but your optic is out of align. If it's an expensive unit, it may be worth repair. When you send it out, they just replace the transport. Average cost between $100-$150 thru Sony direct. Hope this helps.
Sony's customer support www.sonystyle.com then click on support.
Jan 17, 2009 I posted this Jan 3, 2009 and seem to have a solution. Similar problem. E4 54037380 Can not record on this disc. Even though it is from the same package of DVD-Rs that I have successfully recorded to previously. Contacted them about 9 months ago without a successful resolution so I am trying again. Unit will play any DVDs, will record and play back DVD-RWs but will not record on my imation DVD-Rs 8X discs that worked fine in the past. Starts to record for a few seconds and then the error message appears (sometimes with slightly different final 4 digits of error number). Other postings have suggested: maybe a firmware update is available (I requested and we will see Emerson's response), trying slower speed discs (I am skeptical since these 8x imation discs in this same package previously worked, and the instructions say 1-16x for DVD-Rs), unplugging the unit for 1/2 hour to reset the unit (did not work), playing the last disc recorded to the end and then trying a new disc (now it recorded for about 30 seconds rather than 10 seconds but then got E4 54043E02 error message, different but still did not work). So I am hoping for something more productive out of Emerson this time. Update Jan 17,2009. Bought a CD and DVD cleaner disc with the little brushes on it. Cleaned the EWR20V5 per the cleaner instructions and tried to recod on the imation DVD-R 8X that I had used successfully in the past, no luck, same error message. So I bought another brand, maxell DVD-R 4.7GB up to 16X and IT WORKED. The instructions on pg 25 say for DVD-R "up to 16X" may be used but "4X-8X disc is recommended". Go figure, no idea why the 16X worked but they did in this case. So just a suggestion to try other brands. Someone else had suggested that also so I gave it a shot. $8 of new discs and $13 for the cleaner and I've back in business.
After all that fails, it's probably time to change the DVD drive inside
the player. Sometimes this is easy, sometimes not. :) I haven't been inside a 6300 but from looking at pictures, it's probably got a fully removable unit.
Of course, if you have a valid warranty, then when you're left with no
solutions that don't void the warranty, you have to decide whether to
try to pass it off to the warranty holder for repairs.