Mike O said:

Harvey Weinstein has almost as much to answer for as Lucas, but he's not the only offender. The state of Hong Kong action cinema on video is fucking apalling, how many films don't have he mono track and have crappy transfers? It's extraordinary.

Thank goodness for laserdiscs! They are consistently the only way to get original mono mixes for these films. Even American movies released on BD often have no lossless original sound mix if they were originally in stereo or mono.