http://news.com.com/Sony+says+PS3+h...r+games/2100-1043_3-6135205.html?tag=nefd.top
News.com said:Sound is eliminated on some software titles when played on the PS3, while some other titles do not play on the latest machine at all.
News.com said:The Sankei Shimbun daily said on Tuesday about 200 PS and PS2 titles are likely to have compatibility problems.