"Mastered in 4K" low-key debut Sony announced a few months ago that the "Mastered in 4K" Blu-ray disc is about to be released. The first batch of discs has more than a dozen varieties. It can be seen that this is Sony's development. 4K film and television market to explore the road, but to know that these discs are still standard Blu-ray discs, literally understand only in the post-production 4K original film, and then into a Blu-ray disc. Currently, these 4K Blu-ray discs from Sony are only available in the US version, and all of them are taken by Sony's own film company. According to official sources, at the current rate, there will be more than 200 4K BDs launched in 2014, and there will be thousands of online 4K network services with 4K film capacity will be built in the short term. These actions all indicate that Sony should improve the 4K support in a short period of time to promote the rapid development of the entire 4K industry chain.
Sony announced a few months ago that the "Mastered in 4K" Blu-ray Disc is about to be released. The first batch of discs has more than a dozen varieties. It can be seen that this is Sony's way to explore the 4K video market.
"Mastered in 4K" Blu-ray Disc Listing Schedule
True Brilliant Colors <br> The xvYCC wide color gamut standard xvYCC, also known as "xvcolor", is a wide color gamut standard that we have been discussing for many years. This new standard is 1.8 times the color of existing HDTV signals. xvYCC makes HDTV display colors more precise and more natural, and when xvYCC was launched that year, it claimed to "almost represent the colors that exist in nature." xvYCC is used in many HD camcorders. Sony's various high-definition flat-panel TVs support the xvYCC standard, but it is a pity that although the shooting device and playback device support xvYCC, it is really made using this standard. There are very few movies and programs. Only a very small number of discs that can be bought by consumers can use xvYCC for color recording. In fact, there are a lot of devices on the market that specifically expand the color gamut of images to improve the image's realism and color richness. The increase of the number of colors is the key, but the film taken by xvYCC wide color gamut standard is in the late stage. When processing, the color gamut is narrowed down. Although it is difficult for human eyes to observe, when you have seen the excellent effect of xvYCC wide color gamut, you will be greatly moved. Welcome to Home Theater Network
This time Sony's "Mastered in 4K" series 4K Blu-ray disc, of course, will not let this go, so xvYCC is included in the standard configuration, because the biggest feature of 4K video, in addition to high resolution, also provides a wealth of The color performance makes the image more vivid and vivid. Whether playing on Sony's top-of-the-line 84-inch 4K TV or VPL-VW1000, the color fidelity will be greatly improved. It can be said that the 4K film not only promotes the resolution development of high-definition video and audio, but also enhances the color performance of the image.
"Mastered in 4K" is already the limit?
Do we still need a higher capacity disc?
Although the industry generally believes that 4K movies will use Blu-ray Disc as the storage medium, many experts say that the industry has not yet determined what format will be used for 4K movies, and what storage media can be considered after determining the format. With the development of high-definition video and 3D technology, people have higher and higher requirements for the single-chip capacity of optical discs. A 3D Blu-ray movie has a capacity of even 64GB. The ordinary double-layer 50G Blu-ray disc can't meet the storage requirements. Many 3D Blu-ray movies need to use two Blu-ray discs for production. To this end, BDA (Blu-ray Alliance) officially launched a new specification Blu-ray Disc in June 2010 - BDXL (large-capacity recording and rewritable disc), a single-layer BDXL Blu-ray disc of the same size as a 12cm ordinary disc. The capacity can reach 33G. Pioneer's latest BDR-206MBK can support 3 layers of 100GB (BD-R TL and BD-RE TL) and 4 layers of 128GB (BD-R QL). Many people are starting to update the specifications of Blu-ray discs, but Unfortunately, 4K resolution and Blu-ray discs with more than 7.1 channels are not released on a large scale. Although all this is unknown, it is certain that the maturity of network streaming media transmission technology will have a huge impact on traditional disc audio and video entertainment, if we only need to see high quality through the network Audio and video resources, then we still need a higher capacity disc?
In order to cope with the demand of 4K and 8K ultra-high definition video in the future, the new HEVC H.265 video coding technology has been launched, with a maximum resolution of 7680×4320 resolution, which is already the future super HD, four times the ultra HD 3840×2160. Moreover, the coding efficiency is 51%-74% higher than the currently widely used H.264.
The birth of 4K Blu-ray Disc!
4K refers to a video image with a physical resolution of 3840×2160 (TV broadcast specification) or 4096×2160 (digital cinema specification). The program source is captured by a camcorder supporting 4K×2K resolution, and then the resolution is achieved. Full HD 1080p TV 4x 4K TV for playback. Although the 4K standard is diverse, the 4K quality video production is very mature. Many TV programs achieve ultra-HD quality in the whole process of shooting, transmission, decoding and display. 4 times, you can get more than 62.008 million pixels of content. The film also began shooting with 4K video recording equipment and released digital copies to the cinema for playback. Many movies have been shot with 4K camcorders. For example, Red, Canon, and Sony have already launched 4K camcorders for professional use. Through these 4K shooting devices, a large number of works have already launched blue. The disc, although still playing at 1080p resolution, has an obvious improvement in image quality.
4K playback products planned for the future <br> Perhaps many people will ask: "Mastered in 4K" series 4K Blu-ray discs are only made by making 4K movies into full HD quality. What is the significance of this? There are two opinions of the author. The first one shows that the film industry has entered the 4K era. A large number of film works have been taken with 4K camcorders, and the traditional film film has been abandoned, in exchange for maintaining At the same time of image quality, the cost of filming is reduced, just like the 720p camcorder used to shoot movies and then made into DVDs. Of course, the emergence of 4K has revolutionary significance for the film industry. The second point is that 4K resolution is quite attractive for high-definition video and audio resources, although the Blu-ray Disc Association (BDA) still has not developed the original 4K quality Blu-ray disc specification content, but Sony launched this time. The Blu-ray Disc, in conjunction with the 4K TV and projector sales, not only in the test market, but also in the development of home audio-visual entertainment, coupled with the already-listed 4K player, Sony can be said to take the lead. Welcome to Home Theater Network
The difference between "Mastered in 4K" Blu-ray disc and other Blu-ray discs 1. The bit rate of the video is higher. Due to the limited capacity of the Blu-ray Disc BD50, in order to improve the bit rate, these discs do not have a lot of tidbits. The video bit rate will be between 24-30Mbps, and the 4K technology-optimized disc rate can reach 35-50Mbps. The higher bit rate means more detailed picture and more vivid colors, especially after Sony's 4K. The optimization of the display device is more obvious.
2, support for xvYCC wide color gamut is a highlight of the "Mastered in 4K" Blu-ray disc, although it has become the standard for video transmission and playback many years ago, but Blu-ray disc is still very rare, to experience the xvYCC wide color gamut You must have a TV or projector that supports the xvYCC wide color gamut.
3. Sony's "Mastered in 4K" Blu-ray Disc is designed to work with Sony's 4K TVs and projectors. With Sony's own 4K lifting technology, it is possible to optimize the full HD image of these "Mastered in 4K" Blu-ray discs. 4K quality is output again.
Summary: "Mastered in 4K" Blu-ray disc selling point is not only the image quality of ultra-high bit rate, but also "big fuss" in the xvYCC wide color gamut. I believe that no matter which highlight you are looking at, this "Mastered in" The 4K" series of Blu-ray discs are essential for high-end audio and video players. If you already have a 4K TV or projector, this "Mastered in 4K" series Blu-ray disc is the capital to show off.
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