This is more of an issue when an older film that was never released in 4K, or even HD, before is remastered to take advantage of the higher-resolution format. A Blu-ray version of a film could have rich, vivid colours and a finely balanced contrast, while the 4K version could look washed out and bland. How a film is mastered for each format makes a difference to the quality. But when it comes to colour and contrast, things are less certain. Higher resolution makes for a sharper image, that's a given. But a higher resolution doesn't necessarily mean great picture quality (keep reading to find out more). 4K Blu-ray Max resolution 2160p, also known as 4K.ĤK resolution films take up a massive amount of memory when compared with a 480p DVD file and you could never fit one on to a DVD disc.Blu-ray Max resolution 1080p, also known as HD (high definition).DVD Max resolution 480p, also known as SD (standard definition).
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Think of a movie or a TV show as a file on your computer – the higher the resolution, the sharper the image and the more space it takes up on the disc: They're all the same physical CD-size we've been used to for years, regardless of the format. The difference between the three different types of disc is how much data you can store on them. The main differences between DVD, Blu-ray and 4K Blu-ray
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Just want a great 4K or HD Blu-ray player? Use our Blu-ray player reviews to find out which models are worth your money. These discs look alike and are the same physical size, so should you be rushing out to replace your film collection every time a new format comes out? Let's look at the differences. DVD replaced VHS, then Blu-ray came along in all its HD glory and now we have 4K Blu-ray taking the crown as the highest-resolution disc you can get – until 8K Blu-rays come along at some point.