Performance bluray stuttering when compressing bd50 to bd25

[joe_wsc]

hi there

i have a bluray bd50

i compress it to a bd25

all settings are switched to software



i ran it as a bd50 to bd50 = no stutter

i ran it to bd25 and get stuttering


slightly dissapointed as i purchased dvdfab system for this task now im stuck with software i paid for that ruins the blurays at current