Can you watch Blu Ray on ps4 without Internet?

As PlayStation 4 won't play Blu-rays or DVDs out of the box, customers have to install the software update when first getting it. ... In case the PS4 has no Internet connection for the time being, users can also use an external disc or USB storage to update the console system. read more

A Simple Update, and you’re Done! So there you have it. PS4 will play all of your Blu-Ray and DVD movies after you’ve installed a day one update that will probably take less time than it takes you to get out of bed in the morning. A small roadblock, but one that is about as detrimental as a single pebble being thrown at a brick wall. read more

Those interested can request the disc by contacting SCEA Consumer services. The disc will then be sent via mail. PlayStation 4 requires a day-one system update to enable Blu-ray and DVD capabilities. Once the patch is downloaded, users will need to perform a one-time activation via internet. read more