It warps the chapter numbers... I wonder if Ady has taken this into consideration for ESB:R's crawl (I don't know what he's planning to do with the PT, but it seems like something that is important to be decided on before releasing the OT edits). Perhaps he could split the .m2ts files so that the crawl is a separate .m2ts file that can be replaced at a later date, should he decide to cut it down to two films. (That way you wouldn't have to replace the entire 25 gb worth of files. Only the crawl and menus would have to be replaced to reflect the episode number)