When i put a dvd in my hitachi htdk185uk it says unknown disc what does this mean

It would more likely be the types of discs used. They are either of a region code not compatible with the player, contain foreign/unknown data, or they are unsupported formats. For example, if the player supports DVD-R playback, and you put a DVD-RW in, the player will generate 'wrong disc' message if the player cannot recognise the disc or the contents on it.

The disc formats/types that can be played should be outlined either on the unit itself or in the instruction manual (if you still have it). If the player shows that message even with genuine shop-bought DVDs then there is a defect within the unit, workshop attention may be required to fix it, but it could be costly.

'WRONG DISC' usually means the disc inserted is of a different region code to the player, or the wrong format (DVD-RW instead of DVD-R as exampled above). Try using different discs before going any further.

haha...your kidding right..

think it is the laser reader. it is not the motor that spins the disc for sure as i have changed it over. this means that probably the unit is scrap unless you can source and install a new laser and that might cost more in time and money than just buying a new one. I will never buy apex again . tried to write to customer services but no reply.

Is it a pirated dvd? If it is, do you know some dvd players won't read pirated dvds? And if it isn't, then your dvd player may be dirty (the lens). For that you would have to buy a cleaning disk. You can get one at Radioshack. Or maybe what type of dvd type is it? Is it dvd-r, dvd-rw, or what? Some dvd players have trouble reading dvd-rw sometimes.

Hope this helps.

hi, try first to insert a clean up CD, and test your Cd or Dvd player with an original CD or Dvd, if the problem persist , your laser sense is defficient you have to go to fix it to a specialist.
hope this helps you
Sserpentio

i put mine in the shop it is the laser and it cost $219.00 for the part because it comes in an assemlby piece it depends on how much they charge for labor. I choose not to fix due to high cost of it all it is in a bag besid emy computer

Whole drive needs to be replaced.
Common problem.

I have had the same problem a few times. All I do is eject and re-insert the disk until it recognises it, this seemed to work for me

Try to play it by connecting camcorder through the ac adapter/charger which will further connect the battery, so this means you do not have to put the battery in the camcorder rather get it through the ac adapter/charger and format if it asks to. I recovered 1 disc by doing so!

OKAY GUYS TRY USING THIS VERY COMPATIBLE MEDIA

(MEMOREX BRAND DVD-R) THIS WILL SOLVE A LOT OF YOUR PROBLEMS