Mill Creek Running Times?

[JRegis]

I know there's already a Mill Creek thread, but this question pertains to both that release and the Sony original. The Sony first season set (either color or B/W) gives us a running time of 537 mins on the back. This MUST be incorrect, yes? 30 episodes running an average of 25 minutes is 750 minutes. The Mill Creek S1 re-release (which I don't own) gives a running time of 12 hours, 47 minutes - this breaks down to 767 minutes, which sounds exact. I also saw 780 minutes listed somewhere, which is unlikely. Can anyone who owns both sets give me the scoop here? It's likely another careless glitch on Sony's part I guess. From what I understand, the Mill Creek prints are IDENTICAL to the Sony original masters. Again, I am only going off others' input as I don't own the cheap Mill Creek set.