[QUOTE=Lanaki;43343]Thanks, changing it to software helped but now after a system reboot, with the MKV file i try to convert it to iPhone format and after 86% is done, i get this error: FabCore has stopped working. so i have to close dvdfab.[/QUOTE]
Lanaki,
you can use GPU acceleration, no problem, just do not use 2-pass. Stay with 1-pass and you will be surprised how good quality is.