Just when you think you're out, they pull you back in. Some time ago I stopped adding to my Blu-ray collection. Not because I lost my love for the Blu-ray format, but because I ran out of storage space. However, this Prime Day 4K Blu-ray box set is taking a huge hit to my bank balance.

After spending most of the 2010s upgrading my entire DVD collection to Blu-ray, the prospect of doing the same thing all over again to convert it to 4K UHD was not at all appealing. However, some of the discounts Amazon is advertising this year are too good to pass up.

Don't forget that the PS5 and Xbox Series X have 4K Blu-ray drives. If you've upgraded to a next-gen console in the last six months, now is the perfect time to see what all the fuss is about. I've been playing 4K Blu-ray on my PS5 and the experience is a vast improvement over regular Blu-ray, and if you're switching from DVD, you'll be amazed.

If you want to stick with the regular 1080p Blu-ray, most of these deals also apply to the regular Blu-ray box set. Just click on the link below and switch to the Blu-ray listing on the Amazon product page.

Below are the best 4K Blu-ray box sets on sale this Prime Day, including the box sets I've already picked up and the ones I'm looking longingly at wishing I could afford.