I find it a bit strange Guiness Records only examined the footage before granting the record.
Wait, seriously? The Guinness endorsement was the only thing giving this a shred of credibility in my mind. If they really only saw the video then shame on them. They've been suckered.
Wish I knew for sure. This bit from the CBC site is the only thing I've seen which suggests that all the Guinness Book people saw was a video:
"Duru had been working on a prototype for about five years and last August filmed himself flying his new machine over the lake, which is about 130 kilometres north of Montreal, before contacting Guinness.
"Guinness verified the footage and announced the record on its website Friday."