I have been lucky enough to see dye-transfer 35mm prints of OZ several times, most notably one made in 1955.
The color hues in the new DVD transfer more accurately reflect what was in the dye-transfer prints than the previous (very nice) DVD transfer. (As I mentioned in a posting several days ago, I was fortunate enough to see the new DVD at a friend's home).
Indeed, there was no "blue tint" in the dye-transfer prints, but definitely a greater sense of yellow and green.
This was especially true in scenes such as Munchkinland and
the arrival at the Emerald City.
The frame grabs posted here by Herb reflect more detail, sharpness, and clarity than that of the previous disc, although the differences aren't that shockingly different because the old disc was very nice, indeed.
As a kid, I bought the first video release on Betamax, then upgraded to the 1983 laserdisc, both of which came from muddy print. Then came the 1989 release, which taken from a true dye-transfer release print, finally gave us a better rendering of Oz in terms of color. However, release prints, especially dye-transfer prints, are not a good source for telecine. The resulting image was lovely, but fuzzy (although far superior to previous video versions).
The 1993 "Ultimate Oz" LD reflected the use of a new Interpositive made from the original YCMs. A significant improvement. That transfer was used for MGM's 1997 vanilla DVD.
I asssume that same element was used for the far-improved transfer found on the 1999 WB DVD. It still didn't have the real feel of true dye-transfer hues, but was a very fine job.
It is my own personal opinion that this new transfer, is the most faithful representation of the original creators' intent, and is something to celebrate.
I trust others will feel the same joy I did when they get to see what the wizards of Warner have done this time.
Cheers to all
