I have bought the DVD and I reccomend it to higher level practicioners who train regularly in the Bujinkan.
The old Koto ryu video has been updated with new stuff from Kumogakure, Gikan, Gyokushin and Koto ryu. There is not much, but if you know what to look for it is fairly illuminating.
You may note that I reccomend it for people still training. There are some stuff that I have only seen being shown in the last ten years or so in the Bujinkan here in Japan. This tape kind of made some of that crystalize in my mind. I can't say I learned something from this video, more like some things that have been shown to me became a bit clearer.
So if you do not or no longer train in the Bujinkan, I don't think you are going to get much out of it.
Comparrisons with the old Koto ryu tape are natural. I must say that the new footage looks sharp and clear and they stand as great examples to emulate. There are little points thrown out that can help people who have learned to contents of koppo, but people without a background will not be able to pick them up.
So, some people will get something out of this, others would be better served by passing. I guess it depends on how close you are to the training now. People from Arnis, JKD, Jujutsu and other arts will probably not get that much from the tape, but I think every Bujinkan black belt should get this.