peteham wrote on Oct 12, 2012, 05:47: Witcher 2 had this problem on Steam. Everything bundled up into one huge pak file of sorts. The first couple of Steam patches basically amounted to redownloading the entire 15GB game, whereas the standalone patch for the GoG version was just a couple of megs.
Strange, Steam has been able to delta patch for awhile now I thought. Maybe it's just a result of whatever packing format was used.