Superman 2: The Richard Donner Cut has an extended version?

[Gamzilla234]

So I recently bought the RDC of Superman 2 on vudu. Everything was going good till I notice something. There were scenes that weren't a part if it before. I plugged in my bluray of the film and the scenes werent there.

One new scene being the arrival of the three villians in the small town. Ursa beats guy at arm wrestling. Zod throws guy through wall. Non kills little boy. In the bluray, the arrival is skipped and goes straight to the military advancing on them.

I know its not an entirely new scene but some was either seen in the Lester version or was in the tv cuts. But the footage looks remastered and the kid has been dubbed over by a less high pitched voice.

There were a few other scenes or shots that are not on the bluray.

So the bluray according to here and the disc, is 116 minutes long.
While the digital version is 122 minutes long
6 minutes longer than the disc.

So did Warner Bros mess up and put up the wrong version of the cut on digital or is it the other way around?