These are films some shot in native 4k like Spider-Man and some scanned using 4k scanner, and then down sampled back to 1080p so they are technically not 4k, you don't need 4k tv and there is no 4k player anyway. This is the first batch released by Sony to warm up the market to create demand and to share your hard earn money. They may look better but also likely a result of them treating the master with more care and with higher requirement. A few of these titles are selling at amazon at 14.99 some are I think 34.99. It's just like everything is being released n SACD or XRCD again so any layer of money to be made.