processor is an amd athlon xp2500 1.82 ghz. HD is 80 gig maxtor. OS is xp pro c/w sp-2. 512 ram. During large movies like aliens 2.34 hours, about half in the pc crashes. Get either "winlogon.exe error" or Hardware monitor error. Works fine on reg movies. I noticed that the sides of the screen display were pulling in during encoding. cpu temp is 64. Firewall etc off. Asus a7v600 processor. Do you think more ram will help? I managed to get it to work by using the decript moviefiles+ipo,s method. Any idea whats happening?