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Make sure the disk you put in the player is compatible with what is in the manual. Don't try to use disks you burned yourself when the manual does not say it is compatible with CD R or DVD R + or -
And when it is compatible with CD / DVD R, put the files on the disk in a format the player can read. Don't try to play MP4 disks, because almost no MP4 format is compatible with w DVD player.
It may be that the lens is dirty so it can't read.
Try inserting a CD or DVD cleaning disk (like a normal disk but has a little brush attached)
If you are trying to use home recorded disks check that they are in a suitable format - some players require only R- format whilst others will only R+
You can make this player REGION FREE so all discs operate on it.
Power up, no disk in. Status says READ then INSERT DISC.
Press MENU (status reads invalid key icon)
Press 1 (status reads invalid key icon)
Press 9 Menu is displayed.
Press ENTER on the region, digit turns to "-"
Press ENTER again
Press EJECT to clear the special menu.
If you reset (unplug) the player for any reason - this will need to be re-entered.
Did you make the disk if you made the disk your computer has to give it a digital signature so the DVD player can read it if you're using a regular DVD then I would very carefully using rubbing alcohol and Q tip clean the actual laser I would be very careful doing this if too much rubbing alcohol is on the Q tip it will ruin the laser you can also try resetting the DVD player by taking out the battery and unplugging it from any power source and leave it that way for at least 20 seconds to a minute if that doesn't work you might have something else wrong
you can try manually cleaning the laser lens ( gently wipe , do not press down hard , it is suspended by fine wires ) using a q-tip and a drop of that cleaning solution you got with the laser lens disc. ( fluff another q-tip a little ) then dry wipe it with another q-tip and try a disc.
you can look at the laser lens and see if you see the laser come on also to determine if that is working ( do not look directly into the laser ! )
if the laser works but it still does not read discs after cleaning it manually , then there is a problem with the focus coil on the laser or the signal board is bad
I work for Coby technical support. Our customer service phone number is 1-800-727-3592.
the unit is showing "invalid disk" on every disk that you try to play,
unfortunately, the unit has developed a defect and needs to be
replaced. Our warranty is 90 days from the date of purchase. If you've
had the player longer than 90 days, I regret to inform you it is out of
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rating, please let me know why so that I may better assist you. If
there is anything more I can do to help, I will!
Try to use a different dvd because that one might not have been burned or made in the right format. If that doesn't work, then try blowing on the laser just in case there is dust on the lens causing it not to read the dvd properly. If that doesn't work, then you might need a new dvd player.
When you say it won?t read are you trying to play commercial DVD movies or read DVD data disks?
If you're trying to play movies then you need a couple of things the first being some type of player program. Real player works as does Windows media player but usually DVD drives come with a striped down version of PowerDVD or WinDVD.
If you in fact have a player installed and when a DVD is inserted in your drive it doesn't play it may not be configured to automatically play DVDs. Try opening your player program and trying to manually play your DVD.
Let us know if you have any success or if you need more assisted. If you do let us know what player program and operating system you have and any error messages that may appear.