What is Blu-ray? All you need to know about Blu-ray
Blu-ray is 1 of the 2 primary formats of high-definition discs (the other is HD-DVD) which was presented to consumers inwards 2006 to expand the depth, color, too especial that viewers could see inwards the images. The intention was to supercede the DVD measure inwards the USA too global market. However, on Feb 19, 2008, the HD-DVD was locked, alongside Blu-ray leading hard disk drive playback, just the DVD is nevertheless inwards use.
Blu-ray vs DVD
Blu-ray is based on the foundations established yesteryear the DVD inwards the search for a superior TV viewing too listening experience. Although the DVD is much ameliorate than the previous formats, similar VHS too Laserdisc, it is non a high Definition format.
With the advent of HDTV, the vogue to larger TV screens too greater utilization of video projectors, the limits of DVD character larn to a greater extent than evident.
Blu-ray allows viewers to see to a greater extent than depth, a wider make of color shades too to a greater extent than especial inwards the ikon than the DVD.
Where the DVD uses Red Laser technology, the Blu-ray Disc format uses Blue Laser applied scientific discipline too sophisticated video compression to attain high-definition video playback on the same disc every bit a measure DVD.
A beam of bluish Light Amplification by Stimulated Emission of Radiation lite is narrower than a ruby laser, which way it tin focus to a greater extent than just on the surface of the disc. Taking payoff of this, the "pits" on the disk where the information is stored tin hold out much smaller.
This way that you lot tin house to a greater extent than "data" on a Blu-ray disc than on a DVD. Increasing the seat out of pits creates to a greater extent than disk storage capacity, necessary for the additional infinite required for high-definition video.
In add-on to increasing video capacity, Blu-ray besides offers greater good capacity than DVD. Instead of including alone measure Dolby Digital too DTS good that is used on DVDs (which are referred to every bit "lossy" good formats because they are to a greater extent than compressed to gibe on a DVD disc), Blu-ray has the mightiness to concur those formats too more, alongside upwards to viii uncompressed good channels inwards add-on to video content.
Blu-ray Disc format specifications
Storage capacity on disk for pre-recorded playback textile (BD-ROM): unmarried layer (25 GB) - double layer (50 GB)
Storage capacity on disk for recording: unmarried layer (25 GB) - double layer (50 GB). There are 2 types of recordable Blu-ray discs, BD-R (Blu-ray Disc Record Once) too BD-RE (rewritable Blu-ray Disc).
Data transfer rate: from 36 to 48 Mbps (Megabits per second) on average - capable upwards to 54MPS. This exceeds the transfer charge per unit of measurement of 19.3 Mbps approved for HDTV transmissions. This way that Blu-ray non alone handles much to a greater extent than information than DVDs, just it tin besides grip to a greater extent than information than HDTV television set broadcasts are capable of.
Video specifications: compatible alongside total MPEG2 encoding, every bit good every bit alongside MPEG4 AVC (also known every bit H.264) too VC1 (based on the Microsoft WMV format - Windows Media Video). Resolutions from 480i to 1080p (in 2D or 3D - 3D compatibility on or too thence readers was added inwards 2010) tin hold out implemented at the discretion of the content producer.
Audio specifications: alone Dolby Digital, DTS too Uncompressed PCM are required on all players. The next good formats are optional: Dolby Digital Plus, Dolby TrueHD, DTS- hard disk drive Master Audio. However, virtually all Blu-ray Disc players produced since 2008 comprise integrated Dolby TrueHD / DTS-HD Master Audio decoding, un-encoded bitstream output or both. Furthermore, most Blu-ray Disc players are besides compatible alongside the immersive Dolby Atmos too DTS: X surroundings good encoding.
Audio/video connectivity: Blu-ray supports the good output of the players via analog, optical/coaxial digital too HDMI connectivity. When readers were introduced for the showtime time, video output was allowed via composite, S-video, component, too HDMI, just since 2013 all back upwards for video connector via composite, S-video too element video has been eliminated. This way that for whatever Blu-ray Disc purpose instrumentalist made since 2013, the TV must accept an HDMI input to stance video content. Furthermore, in that place is a decreasing seat out of readers offering analog or digital optical good outputs.
Internet/network connectivity: although the Blu-ray format supports network too Internet (BD-Live) features, the integrated network too Ethernet ports on private Blu-ray Disc players are alone required on readers built afterwards Nov 2007. Most readers fifty-fifty right away must accept an integrated WiFi connector option. Furthermore, although non required every bit business office of the Blu-ray specification, most Blu-ray Disc players besides offering Internet streaming capabilities, such every bit access to Netflix, Vudu, Hulu, Amazon Video, etc.
Support for backward compatibility: although the Blu-ray Disc format is non compatible alongside the previous formats, inwards other words, it is non possible to play a Blu-ray Disc on a DVD or CD player, just all Blu-ray players ray discs tin play DVDs too CDs, too or too thence tin play other disc-based media formats too USB.
Ultra hard disk drive Blu-ray
At the destination of 2015, the Ultra hard disk drive Blu-ray Disc format was introduced. This format uses the same dimensions every bit Blu-ray discs, just they are constructed inwards such a fashion that they tin contain to a greater extent than information that supports native playback alongside 4K resolution (not the same every bit 4K upscaling provided on or too thence measure Blu-ray Disc players), similar other video enhancement features, such every bit a broad make of colors too HDR .
You can't play an Ultra hard disk drive Blu-ray disc on a measure Blu-ray Disc player, just Ultra hard disk drive Blu-ray Disc players tin play Blu-ray discs, DVDs, too measure CDs, too most tin play streaming content from the Internet - all at the discretion of the manufacturer.
Conclusion
Blu-ray is a disc-based video format that is suitable for viewing on hard disk drive TVs too tin besides hold out used alongside 4K Ultra hard disk drive TV, although the novel Ultra hard disk drive Blu-ray format meets these needs fifty-fifty better.
For to a greater extent than details on Blu-ray, perish over the specifications discussed higher upwards too uncovering out what else you lot request to know, what to purchase too how to gear upwards a Blu-ray Disc player.
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