DVD player issues

Most likely the dvd is dirty, scratched, or chipped. Try cleaning the dvd disk with a soft cloth (chamois works best). Look at the surface of the disk and if it is scratched lightly, dust and dirt particles, fingerprints, etc will cause refractions from the laser light in the dvd player, which is then read as an error by the dvd player. Cleaning it with a soft cloth will sometimes help.

If that does not work, hold the disk up towards a light source and look for light coming through from the other side. If this happens, the disk is unreadable and unrepairable as the data source has been corrupted.

I have a hitachi portable dvd player, which cannot read ANY disc I put in it. I insert the disc, says it's loading then it displays either NO DISC or DISC ERR..is it the problem with eye of the player?