[DVD-o-matic] subset encoding

one of my favourites ;-) I noticed that while 'encoding the subset' on partial encodings, the space for the resulting file is reduced as intended, but not the encoding time. Seems as if a partial encode will take as much time as a full encode. Could this be improved? I understand that the encoder needs to run through the whole file at some point, but it seems it will also take the time to encode all frames and just 'discard' the unnecessary ones? Is this needed to keep video and audio in sync? (I'm now using the Mac version 0.115, but this is the same under windows) Also, the DCI naming options include the option to use OV or VF. Is there any way to actually create a VF only or a multipackage, e.g. one OV version, one subtitle version, one localized version, each using the same video file? - Carsten