Pardon my intrusion, but check a regular DVD & you'll notice that it has not one but many MPG segments... Most MPG encoders Free & Commercial will not go over the 32 bit limit... I know this, cause it took me 2 days of trying to make such a big file conversion myself, to finaly go look at how the Pros do it. And they split the file into segments, most converters will add a little info into each segment's header where each file joins. And that's the extent of my knowledge on this topic! Good luck! Marco