Conversation so far:
What media platforms is the film on?
there are a multitude of poor quality DVDs with different edits, scores, running speeds and usually in definitely unoriginal black and white".
Which is the official version recorded on?
35mm print that was the source of Shepard's 16 mm print.
Where is the original now?
Museum of Modern Art's.
How has the film been restored since?
this time in a 2-DVD set with added extras on the second disc.
Is the film critically acclaimed?
CANNOTANSWER.

Question: What other restorations were there aside from the DVDs?
Self-contained rewrite: What other restorations of The Birth of a Nation where there, aside from the DVDs?