A new addition to my collection. I haven't picked it yet, but it's the first of its kind I've personally seen. More importantly, it has a removable core! So I got to play with the innards of one of these beasts. Two things I forgot to note in the video: 1. The discs are loaded with false gates (noted by bosnianbill and DrBint). This significantly increases the difficulty of picking the lock. 2. The disc pack itself is very tightly squeezed into place as the set screw is driven in. In the video, you can see a little spring on the end of the plug (the end opposite the silver bit). As you tighten the set screw, this spring compresses, drawing the silver retaining ring about 1/8" further into the body. This reduces any play that might exist among the disks and probably would give enough pressure that manipulation of one disc would tend to upset others. A very nice lock, all in all. And, at its price point (at least what I paid for it), an appealing alternative to Abloy or Abus Plus.