I have a haierpvdd770 and it was playing just fine and now it loads and then it stops ,so we cannot watch a movie on it,it keeps saying not support system.

• 1 Allow the movie to load completely, or at least halfway, before you start to watch it to stop video buffering.
  
• 2 Start the movie and then hit stop until the movie has fully or halfway loaded. As the movie is loading, you should see a yellow or gray line. The line you see will get longer as it loads.
  
• 3 Close all windows that you don't need. Having too many windows open will slow the loading process.
  
• 4 Resume play once the movie is at least halfway loaded or fully loaded. By this time, you should be able to enjoy the movie without the video buffering or constant starting and stopping.
  

The video buffers. That's it may seem to stop, bec it needs to load first. Try waiting for your video to load first before playing it.

First restart the ps3 and try to load the movie again see if that helps or not.
If the Netflix still only loads on your ps3 but keeps on buffering this might be cause by not enough bandwidth allocated for your ps3. Try turning off your computer and all the devices that are connected the internet. Then try again.

Try cleaning the lens with a DVD cleaning kit.

Try cleaning the lense. Use a q-tip and some rubbing alcohol.

optical sensor is burned out or the spindle is not spinning the disk to read it.

The problem exists on almost all computers. If it is possible for you to download the whole movie first, then watch it,you may not have this problem. Between slow internet connection speed, which has a lot to do wth how many are on totally as well as to that site, coupled against play rate, It stops to load more of the file,before continueing to play some more of the movie. .  

Get the free upgrade CD from BOSE and it will solve most of the problems when the program is loaded.

Have you tried unplugging the DVD player and letting it sit for a couple of minutes? If that doesn't work try holding the power button as you unplug/plug the machine.

cds play fine but "no disc" comes up when trying to play dvd movie