I aslo have an epo technologies cd-rom 50x. For example, i test a tdk spped x 48x 700 mb, data cd, with the asus. I get 300000+ errors. With the cd-rom i get a maximum of 100!!! How can this be? And the errors influence the asus reading speed, which is fluctuating at many errors, but when i test with the cd-rim, i no speed variations, the speed being increased from 20x to 50x. I am absolutely confused!!!