Ah right I thought you meant it made the software lock up and crash.
From the way I read it playback doesn't stop as the audio continues.
What I think is happening here is that the bogus playlists have clips either with either a blank screen or the copy warning along with the correct audio.
They also have clips with the correct video but the director's commentary which is also the correct length.
Presumably this makes it harder to spot the fakes as they're the same length as the correct ones.
If you copy the wrong playlist then the warnings/bogus audio etc is played instead of the correct video but only at certain points during playback.
From what I've read some of the bogus playlists are almost entirely correct apart from a single defect so it could be hard to spot whether you've got the right one or not.
There are 98 playlists on this disc.
The majority of these are easy to spot as fakes as the overall duration is wrong.
17 appear genuine to AnyDVD but only one of these is correct.
The other 16 all have director's commentary for certain clips.
There are an awful lot of parallels with ARccOS protection on DVDs and it looks to me like this is some sort of Blu-ray equivalent.
That's all I know about this at present Kerry but if I find out anything further I'll report it here.