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The best 4K Blu-ray disc releases to test your sound system

Nobody film - The best 4K Blu-ray disc releases to test your sound system
(Image credit: Universal Pictures)

If you really want to see what your brand new 4K TV and AV set-up is capable of, you'll need one of the very best 4K Blu-ray discs around.

The selection of 4K Blu-rays below includes nature documentaries, sci-fi films, musicals, dramas and more, and all with blockbusting soundtracks and perfect pictures to help put your home cinema system through its paces. Oh, and some great films too.

Whether you want to entertain the family during movie night or simply marvel at some cutting-edge picture quality, slide one of these 4K Blu-rays into your player and let the film do all the work.

Nobody (2021)

(Image credit: Universal Pictures)

Bob Odenkirk is excellent once again, here as a "nobody" turned action man who turns into an everyman John Wick following a burglary at his family home. The image looks great in HDR and Dolby Atmos, deliberately delivered in a grainy style but still packing contrast and detail. 

Some great action scenes ensure your sound system will get a work out too, with a nicely balanced soundtrack that's full of the expected Hollywood hits. The Atmos sound is done well, with plenty for your height channels to get their teeth into not to mention plenty of sweeping surrounds.

View Nobody 4K Blu-ray on Amazon

Tenet (2020)

Tenet 4K Blu-ray

(Image credit: Warner Bros)

You can rely on Christopher Nolan for an audio-visual treat and despite some slightly questionable mixing levels at times - hearing the dialogue seems to have become optional for Nolan - this is undoubtedly an excellent disc. 

The picture is the highlight, certainly providing a thorough and all-encompassing test for your TV or projector but also just allowing you to appreciate once more how good a film can look. Sonically, expect bass aplenty. 

The film left many of us slightly confused and even cold but it certainly bears repeat viewing as a result. 

View Tenet 4K Blu-ray on Amazon

Seven Worlds, One Planet (2019)

Best 4K Blu-ray discs to test your system

(Image credit: BBC)

One of the best visual experience available in 4K HDR, Seven Worlds, One Planet is yet another staggering achievement from the BBC's nature documentary team. Voiced by the inimitable Sir David Attenborough, the continent by continent format is slightly irrelevant but it makes absolutely no difference. It's yet another marvellous excuse to bring us the best looking set of big cat hunts, mating rituals and migrations around right now.

It's filmed across a huge variety of landscapes - mountains, jungles, deserts, grasslands, cities, arctic tundra - each with thistle-sharp definition and its own incredible palette of colours. If we had to call a favourite, it would be the cheetahs but it's all bloomin' amazing and is arguably the very best 4K Blu-ray disc for testing your system from top to bottom.

1917 (2019)

Best 4K Blu-ray discs to test your system

(Image credit: Universal Pictures)

Sam Mendes’s World War I film is an incredible technical achievement that’s designed to look as if it’s composed of just two consecutive camera shots. It’s also an absolute belter of a test disc that throws challenge after challenge at your system.

The greatest of these is to your display’s motion processing. The film is jam-packed with slow pans over the decimated French countryside. There are very few TVs and projectors out there that can handle those without a fair bit of judder and/or blur. Colour is thin on the ground but the open flames seen later in the film should be vibrant, toasty and bright against the darkness.

Blade Runner 2049 (2017)

Best 4K Blu-ray discs to test your system

(Image credit: Warner Bros.)

This is a truly sumptuous disc that will give your whole system a workout right from the first frame. That uncomfortable close-up of an eye should be stunningly detailed and strikingly blue, and the overhead pans across the concentrically arranged solar farms are a stern test of your display’s motion processing.

The scenes in downtown LA are an excellent way to test your TV’s contrast: you’re looking for differentiation between the inky blacks and grey smog, plus bright, vibrant colours from the neon signs and holographic advertisements.

The soundtrack is just as challenging. The Hans Zimmer-composed, Vangelis-like score is full of deep, bold, oppressive bass frequencies that the average TV and even soundbar will find impossible to recreate, and that will cause a poor quality subwoofer to warble or rattle.

Dunkirk (2017)

Best 4K Blu-ray discs to test your system

(Image credit: Warner Bros.)

Dunkirk is a film of scale - the gigantic wide shots of the never-ending Normandy sky; the enormous sweeps of the huge, flat beaches; the sheer number of soldiers stranded on the barren sands; the extra big 65mm IMAX film that Christopher Nolan used to shoot this wartime epic. Pop this in your player and you'll know why you bought a big TV, but it's got more than size going for it.

The other watchword for Dunkirk is 'texture'. There's a kind of a dulled colour grade to the finished piece and such uniformity of hue that it makes it a brilliant playground for highly capable HDR TVs to really show off what they can do with shading. The grey clouds, the grainy beach and the choppy Channel become characters all of their own.

Guardians of the Galaxy Vol.2 (2017)

Best 4K Blu-ray discs to test your system

(Image credit: Marvel)

If Dunkirk is texture, then Guardians 2 is all about colour. You can rely on many of the Marvel films to have a good, even balance of colour and, set in space, filled with aliens and featuring one main character with bright green skin and another in bright blue, this one has got to be the most vibrant in the MCU.

After a brief opener in Missouri, it's one of the most vivid films you'll find. From the stunning gold of the Sovereign to the Kaleidoscope of Ego's World, it's a feast of colour. The 1970s/80s soundtrack is also a great one for testing the music ability of your AV sound.

The Martian (2015)

Best 4K Blu-ray discs to test your system

(Image credit: 20th Century Fox)

From colour to contrast - the harsh, cloudless glare of the sun moving through the Martian sky makes for some incredibly stark lighting in the many exterior shots of this film. The various oranges of the planet's surface are struck by patterns of pitch dark shadows, giving your TV a real test of how well it can render images of very bright and very dark areas at the same time.

Once inside the Mars habitat, there's then a great opportunity to appreciate how well your set can handle white details with all the NASA suits and equipment mostly white and light grey. 

Life of Pi (2012)

Best 4K Blu-ray discs to test your system

(Image credit: 20th Century Fox)

The film version of Yann Martel's Man-Booker Prize winner pushes every AV slider up to the max. It's all supposed to look a little unreal and that's partly done by pushing the colours through the roof and using visual effects perhaps a little more than most filmmakers would consider wise.

It's not one to calibrate your set by but it needs to look magical without coming across too plastic and fake. The shots in the lifeboat should start making you a little bit queasy, the Piscine Molitor must be a place you need to swim, and if you don't develop a healthy fear of 300lb Bengal tigers, then your TV's not doing its job.

The Greatest Showman (2017)

Best 4K Blu-ray discs to test your system

(Image credit: 20th Century Fox)

This old-time style film musical is what big screens were made for. The countless wide shots, the large scale choreography and so much of the action set on huge stages in front of enormous crowds - it should all snap into focus when watched in 4K HDR on a capable system.

Bigger still, though, is the soundtrack. Naturally, we'd advise at least a soundbar to go with your TV.  Otherwise, anything less than the very best TVs for audio will not do this film justice. A lack of precision will be terminal for a sense of clarity and rhythmic drive, and it's all too easy for most sets to boost bass at this expense. If you're in any doubt, try playing the soundtrack on your hi-fi and see what it should be like.

Star Wars: The Last Jedi (2017)

Best 4K Blu-ray discs to test your system

The Last Jedi is a braver, more divisive and diverse film than the crowd-pleasing The Force Awakens, getting more interesting with successive watches as you dig deeper into the themes played out in the film.

The 4K HDR picture is stunning as the action hops around different planets (the Battle of Crait, with the red soil streaking through the white salt layer, looks gorgeous) and the soundtrack - well, it's done by John Williams again so of course it's epic and rousing. Snoke's throne room is a thing of dark, surreal beauty and there's a scene towards the end played out in total silence that will take your breath away.

The Matrix (1999)

Best 4K Blu-ray discs to test your system

It's over 20 years old, but there's still something unique about The Matrix. If you've forgotten just how groundbreaking and stunning this film is, you owe it to yourself to get it on 4K Blu-ray.

Detail is just incredible at times, very sharp and revealing, and the epic corridor sequence is still an excellent showcase. Colours are far from natural but strong in a deep and vivid way that produces a rich, textured look. We're happy to follow that white rabbit again and again and again.

Baby Driver (2017)

Best 4K Blu-ray discs to test your system

Director Edgar Wright returns with another kinetic and idiosyncratic film in the music-obsessed Baby Driver. The real draw is the integration of soundtrack into the narrative – Wright cleverly weaves musical motifs with the action on screen, with the film having as much in common with a musical as a classic heist film.

The 4K image is solid, retaining the film's bright sense of colour and natural detail, and you'll need a great sound system to really make the most of that energetic soundtrack.

The Shape of Water (2017)

Best 4K Blu-ray discs to test your system

At the centre of this Oscar-winning film is a lonely, mute janitor at a top-secret laboratory, who falls in love with an amphibious creature. Unusual, but this has sprung from the inventive mind of Guillermo del Toro (Pan's Labyrinth, Hellboy, Mimic, Crimson Peak) whose imagination runs visually wild while still drawing you in with engaging characters and a story full of pathos.

More to the point, it looks ravishing in 4K, bringing the grim 1960s setting and fantastical elements to life with lush detail, beautifully contrasting colours and rich textures. There's no Atmos or DTS:X soundtrack here, but Alexandre Desplat's score is sweeping, whimsical and emotional at turns.

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Dan is a staff writer at What Hi-Fi? and his job is with product reviews as well as news, feature and advice articles too. He works across both the hi-fi and AV parts of the site and magazine and has a particular interest in home cinema. Dan joined What Hi-Fi? in 2019 and has worked in tech journalism for over a decade, writing for Tech Digest, Pocket-lint, MSN Tech and Wareable as well as freelancing for T3, Metro and the Independent. Dan has a keen interest in playing and watching football. He has also written about it for the Observer and FourFourTwo and ghost authored John Toshack's autobiography, Toshack's Way.