It required a $200 special external HD-DVD player to do so. Man, I feel bad for people who bought... oh wait, I bought two. :(
By the end, they were selling for like $50 and giving away discs.
I now try not to be the first to buy anything "new tech," I was certain HDR and Dolby Vision were going to do the same as Blu-Ray and HD-DVD and one would kill the other, it could still happen but maybe not.