Let me say it in simple English.
Blu-ray is Blu-ray, and HD is HD. Don't get confused!
Blu-ray is a new generation of storage technology advocated by Sony, which is mainly used to solve the problem of too small dvd capacity. The smallest Blu-ray disc is 25G (single-sided and single-layered), which is more than five times larger than its DVD single-sided disc.
Because Blu-ray has a huge capacity and can store more data, it can complement each other in high definition. This is why most people easily confuse Blu-ray with HD.
Just like now, DVDs are not all used to show movies, and Blu-ray is not all used to watch movies. It can also store pictures, software, audio and data. ...
HD is not all Blu-ray. A large number of high-definition resources are burned from satellites and televisions. As a carrier of high definition, Blu-ray is only a part of the carrier.
What does blue light mean?
Let me say it in simple English.
Blu-ray is Blu-ray, and HD is HD. Don't get confused!
Blu-ray is a new generation of storage technology advocated by Sony, which is mainly used to solve the problem of too small dvd capacity. The smallest Blu-ray disc is 25G (single-sided and single-layered), which is more than five times larger than its DVD single-sided disc.
Because Blu-ray has a huge capacity and can store more data, it can complement each other in high definition. This is why most people easily confuse Blu-ray with HD.
Just like now, DVDs are not all used to show movies, and Blu-ray is not all used to watch movies. It can also store pictures, software, audio and data. ...
HD is not all Blu-ray. A large number of high-definition resources are burned from satellites and televisions. Blu-ray is just a carrier of high definition, just a part of the carrier.
What's the difference between HD 1080p and Blu-ray?
1080p are videos and audio tracks extracted from Blu-ray discs, and then re-encoded and compressed to generate 1080P HD. 1080p is a high definition standard. That is, the video resolution reaches 1920 1080 P, which is a progressive scanning mode, and the blue light is based on 1080 P. However, 10 G is a distortion-compressed X264 code 1080 P, and its quality can't be compared with that of Blu-ray. A piece of blue light should be at least 30G, 1080 p 10G. The smaller the file, the more it shrinks. Under normal circumstances, more than 35G belongs to the blue light nondestructive extraction package 1080P.
Let's put it this way: Blu-ray is definitely 1080p, and 1080p is not necessarily Blu-ray.
What does the development of Blu-ray board mean?
The original Blu-ray may not have Chinese subtitles. Experts in high-definition forums use tools to separate the results of source files-"Add Chinese subtitles-"REMUX, and then package them for distribution in China, which is generally called Blu-ray printing.
What does the Blu-ray version of the movie mean?
That is, the resolution of the movie picture can reach 1080P, and the picture quality is clear.
What does blue light mean?
The color that our human eyes feel is blue, so this band is called blue light. There will be a lot of blue light in the mobile phone, which can make the screen light whiter and brighter. But some blue light is bad for eyes.
What does PPTV blue light mean! ?
Another high-definition format
China Blu-ray is a new generation of optical disc storage standard, China's independent standard and a model of joint innovation. The storage capacity of the optical disc is single layer 15G/ 30G, and the top-level high-definition image of 1920X 1080 is realized. The full name of CBHD China Blu-ray HD standard is China Blu-ray HD. CBHD is the English abbreviation of China Blu-ray HD CD. China has independent intellectual property rights in modulation and coding, high-definition audio and video coding and decoding, navigation and copyright protection system. As the standard of high-definition optical disc format, CBHD realizes 1080P full HD, which is another technological revolution and industrial revolution after VCD and DVD. It is not only a replacement product of DVD, but also a landmark product in the high-definition era, representing the demand for high quality. Three advantages of China's Blu-ray: China's Blu-ray genuine HD has three obvious advantages: First, the technology is based on the most advanced AVS and H.264 coding formats, and on the premise of ensuring the top-level image effect of 1080P, the CBHD disc with the capacity of 15X2 can accommodate any movie. Second, the advantages of the industrial chain CBHD discs and DVD discs have similar physical formats. Therefore, China Blu-ray can continue its industrial base in the past, and greatly reduce the cost from programming, master production, CD reproduction and other aspects. Three. Independent innovation standards Independent intellectual property industry standards and national standards of the Ministry of Industry and Information Technology are under examination and approval; With a number of technologies with independent intellectual property rights, the alliance has established a patent pool, which can be licensed in China.
What does BD mean? What's the difference between BD and Blu-ray without repair?
BD means Blu-ray Disc, so you can understand it as a clearer video than DVD (although it is a storage technology).
Blue light is BD;
Works that have not been modified are generally unedited, and sometimes some plots will be abridged when reviewing something.
What does Blu-ray DVD mean?
BD is the abbreviation of Blue Disk, which means "Blu-ray Disc" when translated into Chinese. Now the laser head of DVD is orange-red, and the wavelength of blue light is smaller, that is, the focus point on the disc is smaller, and the disc of the same size can store more data. This is the basic principle of Blu-ray. It seems that a CD can store 50G of content.
Blu-ray disc player uses blue laser to read files on the disc. Because the blue light wave is short, you can read more CDs. So why can Blu-ray read and write more discs? This should start with the laser:
The laser used for reading and writing is very accurate light, accurate to the limit, that is, the general wavelength of light. Because the wavelength of red light is 700 nm, and the wavelength of blue light is only 400 nm, the blue laser can actually be more accurate, and it only takes 200nm to read and write a point. In contrast, the red laser can only read and write a point at 350nm, so the same optical disc will naturally record more information with more points!
Blu-ray disc is a kind of Blu-ray disc, which is one of the standards of the next generation DVD. The leaders are Sony and Toshiba, with Sony, Panasonic and Philips as the core, and the support of giants such as Pioneer, Hitachi, Samsung and LG. The storage principle is groove recording, and the traditional groove recording is adopted. And the storage and data management with larger capacity is realized by more advanced jitter addressing, which has reached a shocking 100GB at present. Compared with the traditional storage form of CD or DVD, BD disc obviously brings better reflectivity and storage density, which is the key to its capacity breakthrough.
Many friends are often confused by various versions of guns, TC, Scr and HD when downloading movies. Various versions of abbreviations are collected today for your reference.
CAM Cinema * * * Gun Edition-Gun Edition with slightly better TS quality -TC Film Normal Edition -TC Film Clear Edition -DVDSCR Pre-sale Edition -DVD drip Edition -D5/D9 Collection Edition
1. Cam (gun type)
CAM usually steals from the cinema with a digital camera. Sometimes a small tripod is used, but most of the time it is not available, so the camera will shake. So we see that the picture is usually dark, the characters are often distorted, and the subtitles below are often tilted. Because the sound is recorded from the camera's own microphone, the audience's laughter and other sounds are often recorded. Due to these factors, the image and sound quality is usually poor.
2.TS (quasi-gun version)
The standards of TS and CAM are the same. But it uses an external sound source (usually the earphone hole for the hard-of-hearing people in the cinema seat). This sound source cannot be guaranteed to be a good sound source because it is interfered by many background noises. TS was recorded with a professional camera in an empty cinema or projection room, so the picture quality may be better than CAM. But the picture fluctuates greatly. The general TS version and the restored clear TS version often appear on the forum.
3.TC (movie version)
TC uses telecine machines to make digital copies directly from film. The picture quality is not bad, but the brightness is not enough, which is a bit dim. Many times, the sound source used for TC comes from TS, so the sound quality is very poor, but the picture quality is far better than TS. If it is not too particular, TC version is still a good choice.
4.DVDSCR (pre-sale version)
Preview or beta DVD, unofficial version. The video format obtained from preview DVD is compressed with high quality by mpeg-4 technology. It can be released earlier than DVDRip, but the picture quality is slightly worse. There are often some information that does not scroll at the bottom of the black screen, including copyright and anti-piracy phone numbers, which will affect viewing. Without strict division, its picture quality should be similar to that of TC version.
5.DVDRIP (final version)
DVDRIP: converted from the final version of DVD. Quality should be the best. The video, audio and subtitles of DVD are stripped, compressed or otherwise processed, and then reassembled into multimedia file floating. Generally speaking, DVDrip consists of an audio and video file (ending with avi) and a subtitle file.
6.HDRIP (HD version)
HDRip is the abbreviation of HDTVRip (high definition television resource compression). It uses MPEG-44 compression technologies such as Divx/XVI/X264 to compress the video images of HDTV with high quality, and then packages the video and audio parts into one. Avi is still. ......
What does DVD Blu-ray Edition mean?
That is, write the version of Blu-ray closed disc. Blu-ray Disc, translated from Chinese into Blu-ray disc, is the next generation disc format of DVD disc. With the increasingly strict requirements for multimedia quality, it is used to store high-quality audio and video and large-capacity data storage. Its current competitor is HD DVD, both of which are supported by different companies and hope to become standard specifications. The name of blue light comes from its laser wavelength of 405 nanometers (nm), which happens to be blue light in the spectrum, hence the name. (DVD uses a red reader with a wavelength of 650nm, and CD uses a wavelength of 780nm. )
The single-layer Blu-ray disc has a capacity of 25 or 27GB, which is enough to burn a high-definition movie for up to 4 hours. Double layer can reach 46 or 54GB capacity, which is enough to burn a high-definition movie for 8 hours. The capacity of 100 or 200GB is 4 layers and 8 layers respectively.
According to the current research, TDK has announced the development of a four-layer optical disc with a capacity of 100GB.