I SAW a few (its a given that they'll remain few for a long time, not more than a dozen, really) which was lovingly restored by subjecting them to a clean-up and digitizing to as much as 8,000 mega-pixel then downsized to the consumer-grade 2,000K. All of it are Warner titles: NORTH BY NORTHWEST, WIZARD OF OZ, DOCTOR ZHIVAGO, WILLY WONKA AND THE CHOCOLATE FACTORY. I'm hopeful I could see how the restoration and Blu Ray'ing delivers with THE AFRICAN QUEEN and STAR IS BORN. Non-Warner Blu Rays with aged contents - more or less - would be BARAKA and DANCES WITH WOLVES. Baraka is breathtaking in its high-definition form, even if seen on an ageing 720p DLP projector. Dances in Blu Ray is given further visual vigour by giving the most pristine presentation of its panoramic glory (and the fierce but majestic Red Indian characters). The one title I'm awaiting more than Star Is Born, would be Alfred Hitchcock's VERTIGO. This is the first Warner film I learned that was fully restored at a million-dollar expense because the original film stock has irreversibly deteriorated. I saw this on laserdisk, two late 90's DVD editions and a 2009 DVD edition whose distinction is its furtherly-cleaned picture making for a velvety, color-corrected, resolution. I'd await if VERTIGO on Blu Ray could deliver THE ultimate edition.
Other oldies I yearned to see on Blu Ray would be: SAMSON AND DELILAH, SOUND OF MUSIC, THE LOST HORIZON of 1973 (very rare, very obscure!), HITCHCOCK'S THE BIRDS, GOOD NEWS of 1948, and SINGING IN THE RAIN, among others.