HELP!!! My Universal DVDs won't play anymore!!!!

Hey folks,
I had been having trouble with my Spartacus for a while. It stopped
playing on my Panasonic, but still played on my Cyberhome. Now, it won't
play on my Cyberhome.
And tonight I put on Psycho and IT WON'T PLAY ON EITHER MACHINE.
Is anyone else having trouble with Universal DVDs?
Please let me know.
Thanks.
Eddie

Edward Holub