Try cleaning your current one by getting either a cleaning disc that u put into the playstation or opening it up, most of the time the optical gets dirty or if you have an older playstation 2 then there is a gear the channels what media your system can play, if you search Google there are reviews on how to fix this problem. For parts you might check here http://www.mod-chip.com/ps2version.htm or here http://store.richspsxparts.com/pl2pa.html and if everything else fails go here www.ebay.com :) good luck.