I read several of the reviews complaining about poor video and audio quality, and was hesitant about ordering the new 45th Anniversary Zhivago.
It was a favourite movie, I only had an old betamax copy of the movie.
The quality of the Blu-ray is quite good, there is detail beyond what you would find on a DVD copy for certain.
While the movie's picture quality doesn't rival recent movies, this may have to do with more sophisticated lighting designs today, and much bigger budgets. Undoubtably image capture technology has advanced in 45 years, and today, cinematographers have more tools to capture the breath-taking images that we pay to see in the cinema.
If Zhivago is a movie you've enjoyed in the past, and did not buy a DVD copy of it, then whole-heartedly, enjoy the movie again in Blu-ray. There is a visible difference.
With respect to the soundtrack, remember that it is a digitally restored soundtrack. It is not a soundtrack from a 2010 block-buster. The sound is clear and balanced, but does not have the dynamic range of today's movies. It didn't 45 years ago, and doesn't today.
Enjoy a classic movie, in good image and sound quality, and considering the cost of seeing a movie at a movie theater, the special price that amazon.ca currently offers is a good value.
By the way, the bonus audio CD was a nice treat!