What's the difference between 4K, Blu-ray, and DVD formats?
The 4K format is the newest video format with a 4K resolution or 3840×2160. DVD format caps out at 1080P resolution or 1920×1080, DVD resolution is the oldest of the three video formats with a max output resolution of 480P or 720×480.
Third-Party Video Streaming Services
Stream your favorite movies and TV shows with Netflix, Hulu, or Pandora to name a few. Love listening to music, how about Pandora internet radio?
Quality and Resolution
Speaking of resolution, 4K UHD will fully deserve to be the winner in the 4K vs Blu ray vs DVD battle. The biggest difference between 4K Ultra HD and traditional Blu-ray is that the former supports resolutions up to 3840 x 2160 (4K), while the latter caps out at 1920 x 1080 (1080p). This significant difference however seems to be surprisingly subtle for human eyes. To sum up, in the quality round of Blu ray vs DVD vs 4K Ultra HD, 4K is four times better than Blu ray, while Bluray is six times higher than DVD.
Movie Storage
The Ultra HD 4K can hold between 66 to 100GB of data, far surpassing HD DVD or Blu ray. But you should know that movies in 4K resolution will take up much more space.
Resolution
Compare Blu ray and DVD, more resources are available on DVDs as Blu ray is a relatively new technology. The concept of 4K can date back to as early as 2004, but it didn’t come into vogue until 2014.