Deadwood Releases (Differences)

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https://www.blu-ray.com/movies/Deadw...lu-ray/115640/ (UK release)

https://www.blu-ray.com/movies/Deadw...Blu-ray/13179/ (North American release)

Noticed a few things. Disc count is 13 for North America and 9 for UK.
Runtime is 1896 min for the UK and 2140 min for the North American.

It is obvious the UK release (despite being labeled the ultimate collectors edition) is vastly inferior in content and packaging. What I specifically want to know is if there is any difference in the transfers for the episodes themselves. If the episode (and thus show entire) length is any different. Or is the primary content (Episodes, Video bitrate/quality/source/transfer, and English Audio track) identical?

Thanks in advance.

P.S. I am well aware of the incredible deal on Amazon.ca (Canadian Amazon) for Deadwood currently. My Inquiry stands regardless.