Hello. I use the follow command for rip DVD from my .NET aplication mencoder.exe -dvd-device D: -vf pp=fd -aid 128 -oac copy -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=1450:vpass=1:turbo:keyint=25 -ofps 25025/1001 -of avi -o C:\\prueba2.avi dvd://1 dvd://8 but I have a mencoder win32exception Why? Thank you