Like Sister Street Fighter I + II  BCI/Eclipse have put two martial arts films on one side of a single-layered Blu-ray. This is entitled a "Sonny Chiba Double Feature".

Henrik and I actually compared two SD-DVD versions of (The) Killing Machine HERE and yes, the Blu-ray transfers improves upon that, with its 1080P resolution, however it is still an MPEG-2 video encode. My image quality complaints are similar to Sister Street Fighter I + II - there is some digital noise and the print used has, mostly unnoticeable, marks and light scratches. Fans may appreciate the occasional cue-blip.  As a positive the image quality does improve quite a lot as the film runs along and grain is evident. The Killing Machine never really exhibits a great deal of sharpness but that is more in the way it was originally shot. Colors are not significantly bright and contrast wavers a bit. Taking away the magnifying glass of criticism... it is quite watchable and the improved image does give it more of a 'theatrical' feel. I kinda like having this on Blu-ray as I get a kick out of watching the film every once in a while. It is fairly quintessential of the genre.  

Shogun's Ninja definitely looks the superior of the two in this double feature. I don't have an SD of it to compare but it improves upon The Killing Machine in most areas - colors are brighter, the print is cleaner, digital noise is decreased and, (probably not due to the transfer) detail is sharper. Most enjoyable about this particular martial arts film is the use of the widescreen frame to isolate characters for a greater dramatic effect. Daylight sequences are bright while contrast has raised itself to an acceptable level - it is also fairly clean with only some single-frame blemishes. The biggest visual flaw is the noise but after that only rears its ugly head in darker scenes with extensive monochromatic areas. Despite the single-layering and MPEG-2 encode this has a tendency to look fairly impressive - more akin to a very strong DVD transfer.