When a VIDEO_TS.IFO file is opened in IFOEDIT a VMG overview is given. Is this _just_ a description of what lies in the VTS_X_0.IFO files? Changing the video attributes in VIDEO_TS.IFO doesn't seem to do anything, except when changing them for the video manager menu (VIDEO_TS.VOB). Changing the video attributes in the VTS_X_0.IFO files seems to work however. So, are the video attributes for the title sets in VIDEO_TS.IFO _just_ descriptions?