When using DVDdecrypter to copy the DVD to my HDD,i then use intantcopy to make the backup,in this process i can remove stuff i donīt want,can i safely remove the mandatory subtitles without ******* up the way the menu works? Does one have to be carefull as to what one is removing from a given title?

I usually remove all soundtracks and subtitles that is of no use to me,but this has all been titles where i could turn the subtitles off.