So how did BluRay beat HDDVD and other standards?

I remember there was a Laserdisk standard and they made Episode 4, 5, 6 for Laserdisk that was the original cinema version before Lucas changed things to make it more family friendly, like Greedo shot first instead of Han Solo, etc. The VHS version got edited and so did the DVD versions. Laserdisk was so old it had the original released to cinemas but not the edits because they abandoned the Laserdisk format for DVD and VideoCD later on.