Source: The Verge
quote: That's almost true, and likely true in many cases, but certain film formats (wide screen and 70mm) have >4k resolution, and would benefit from a new 4k or greater transfer. In fact, formats like Todd-AO are closer to 7k and 70mm widescreen is more than 9k. So in theory we'd want a 12k format to completely replace all film formats in the home.
quote: Case in point: Ghostbusters (1984) in 4K, LOL.
quote: Many of those movies are upsampled from pre-4K and even pre-HD days. If the movie was not shot in 4K or HD, there nothing much you can do about it, even if you upsample it to 8K. Case in point: Ghostbusters (1984) in 4K, LOL.