[spooky]

Your psx may have a worn out out laser a Warlock stated but if it still runs original games then you should be able to do something about it!

Take a look at www.paulmax.eng.net and look for laser adjustment, there are 3 tiny adjustment pots on the board near where the laser wafer cable attaches and 1 on the laser ribbon. You will need a Multimeter to set up the pots correctly.

If this is done properly you should have many hours of happy gaming ahead.