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What’s A Movie In 4K UHD?

by James William


A movie in 4K UHD has a resolution that is four times greater than that of Blu-ray. This provides a sharper, more detailed image that will truly impress your audience and captivate their attention. The term 4K is often used interchangeably with the term Ultra HD, to know more click here movie2uhd.com. However, the two formats did not start out as the same thing. In the media and consumer electronics industry, 4K refers to a horizontal pixel count of 4,000. The digital cinema industry uses a standard called DCI 4K, which has a horizontal resolution of 4096×2160.

Most TVs, Blu-ray players and streaming services that support 4K use the 3840×2160 pixel standard of 4K. They also usually support a flat or scope aspect ratio. This helps prevent the image from truncating or stretching when it’s played back.


HDR (High Dynamic Range) is a video format that displays images with more luminance and color than SDR. When paired with a high-quality display, HDR can produce eye-popping results. This is because it expands the range of colors that can be shown, and increases the contrast between bright and dark areas of the image. This means that fire trucks will look more like fire truck red, and Coke cans will be closer to the real thing.

Currently, most 4K UHD content supports HDR. However, older content may not be compatible with HDR. It is important to check your TV’s specs to ensure it can support HDR. Also, make sure the content you are watching is filmed in an HDR format. This will ensure that the image is as high-quality as possible.

Dolby Atmos

Dolby Atmos is the most immersive audio format out there. It’s found in movie theaters, Ultra HD Blu-ray discs and streaming services like Netflix, Disney+ and Apple TV. It expands on traditional surround sound by adding height channels. So instead of hearing sounds from behind, beside and around you, it creates a dome of sound that’s supposed to mimic how sound moves in real life. You’ll hear raindrops falling, bullet ricochets and even whizzing cars from above.

You’ll also find Dolby Atmos soundtracks on many TV shows and some music. Apple, for example, has a lot of iTunes movies and TV shows in Atmos and will upgrade any non-Atmos content to the format free of charge. Some bands have also mastered their albums in Dolby Atmos, such as R.E.M.’s rerelease of Automatic for the People.

DTS-HD Master Audio

DTS (formerly Digital Theater Systems) has long been a major competitor to Dolby when it comes to home-theater audio formats. DTS-HD Master Audio is a lossless 7.1 surround codec for Blu-ray discs, which can be played over HDMI or RCA connections. Unlike Dolby TrueHD, DTS-HD Master Audio is a bit-for-bit lossless format – essentially what goes in is what comes out. However, some information is discarded in the encoding process to save space on the disc.

DTS-HD Master Audio is also backwards compatible with Blu-ray players, so you can play movies that use the track over your existing AV receiver. However, you will need a DTS:X-compatible player and receiver in order to take advantage of the new height virtualization feature. DTS:X is layered on top of standard DTS-HD Master Audio and requires a minimum HDMI 1.3 connection.


BD-Live is a feature that lets a BD-Live compatible Blu-ray player connect to the Internet and access extra content. Typically this includes behind-the-scenes videos, online games or exclusive media that can be downloaded to your player. To use BD-Live, you’ll need a BD-Live capable player with an Internet connection (high-speed broadband recommended). A BD-Live logo appears on the disc jacket and the movie menu indicates when the BD-Live feature is active.

Some BD-Live features include Internet chats scheduled with the director, online games and downloadable quizzes. Others, like Cinechat in The Da Vinci Code, enable you to text with other viewers watching the same movie over an Internet connection – not exactly ground-breaking but still fun. However, the majority of BD-Live interactivity has been disappointing and pointless.


You can find a lot of films to watch on YouTube, provided that you don’t mind ads. YouTube also has a separate section for free movies and even features a couple of big titles like Get Shorty and Dirty Rotten Scoundrels.

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