It will soon join the Betamax.
The XH-A1 is fine. It knows nothing about HD DVD or Blue Ray. It simply shoots and records high definition video. It can also, of course, also shoot standard definition.
I don't know about your editor. If it doesn't support Blue Ray, you may be out of luck. Sony Vegas, BTW, does support Blue Ray.
What significance, if any, does BR vrs HD have to do with my 'soon to arrive" Canon XH-A1, subsequent HD Video editing software
(Studio Pinnacle Ultimate 11) and my new HD DVD burner ?
Hopefully all this hype is just about TVs...