My dvd player plays cds but wont play dvds says disc error or unknown disc

If it's possible to play cd and no DVD's the laserunit is defect.

you just bought it? take it back it may be a rare case of Dead on arrival.

the dvd player lens has developed a fault.
jon

TThe player does not play this type of dvd disk! only pre-recorded movies and CDs Try hooking Up a player that plays DVD+ and DVD- disks!Hope I was of help!
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have u tried cleaning the hea of ur dvd player?after using a dvd player or cd player for long times of continous play say 6 months or if u play too many scratched discs and u dont clean the head of the player it starts skipping the disc or many a times dosnt recognise the disc so it'll give u errors like "Unknown Disc", "Disk Error" etc so i would really recommend u to clean its head using a dvd head cleaner cd.. its easily available in the video stores or malls.. u can purchase any dvd head cleaner cuz there are number of manufatcures for this. im sure this would solve ur issue.
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THANX

Unplug/replug unit, try commercial dvd's again. If fails - call Philips- find out about replacement options

Hi ,
You should do...
1- clean to lens
2-change with new lens
3- change the spindle motor
I hope to fine it.

Alright for some, I can't get anything! And all the helpline offers is music, with no indication that it si even the right bnumber

Laser got weak. buy a new one

upgrade the firmware on the product.