Blu-ray | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-10-04

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Blu-ray


00:03:19 1 History
00:03:28 1.1 Early history
00:06:58 1.2 Launch and sales developments
00:08:46 1.3 Competition from HD DVD
00:13:22 1.4 Future scope and market trends
00:17:05 1.4.1 Beyond Blu-ray Disc
00:18:16 1.4.2 Ongoing development
00:24:39 2 Physical media
00:24:48 2.1 Laser and optics
00:27:03 2.2 Hard-coating technology
00:28:34 2.3 Drive speeds
00:29:55 2.4 Packaging
00:31:18 2.5 Variants
00:31:26 2.5.1 Mini Blu-ray Disc
00:32:15 2.5.2 Blu-ray Disc recordable
00:34:26 2.5.3 BD9 and BD5
00:36:34 2.5.4 BDXL
00:37:33 2.5.5 IH-BD
00:37:57 3 Data format standards
00:38:07 3.1 Filesystem
00:40:50 3.2 Application format
00:41:49 3.3 Directory and file structure
00:45:56 3.4 Media format
00:46:05 3.4.1 Container format
00:48:07 3.4.2 Codecs
00:48:32 3.4.2.1 Video
00:52:13 3.4.2.2 Audio
00:52:55 3.4.3 Bit rate
00:53:55 3.5 Java software interface
00:55:12 3.6 Player profiles
00:56:53 3.6.1 BD-Live
00:57:59 3.7 Region codes
01:00:35 3.8 Digital rights management
01:01:09 3.8.1 High-bandwidth Digital Content Protection
01:02:03 3.8.2 Advanced Access Content System
01:03:06 3.8.3 BD+
01:05:12 3.8.4 BD-ROM Mark
01:06:03 4 Backward compatibility
01:07:03 5 Variations
01:07:12 5.1 High Fidelity Pure Audio (BD-A)
01:07:45 5.2 AVCHD
01:08:46 5.3 AVCREC
01:09:24 5.4 Blu-ray 3D
01:12:27 5.5 Ultra HD Blu-ray
01:12:53 6 See also



Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago.

Learning by listening is a great way to:
- increases imagination and understanding
- improves your listening skills
- improves your own spoken accent
- learn while on the move
- reduce eye strain

Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone.

Listen on Google Assistant through Extra Audio:
https://assistant.google.com/services/invoke/uid/0000001a130b3f91
Other Wikipedia audio articles at:
https://www.youtube.com/results?search_query=wikipedia+tts
Upload your own Wikipedia articles through:
https://github.com/nodef/wikipedia-tts
Speaking Rate: 0.91437059444335
Voice name: en-GB-Wavenet-D


"I cannot teach anybody anything, I can only make them think."
- Socrates


SUMMARY
=======
Blu-ray or Blu-ray Disc (BD) is a digital optical disc data storage format. It was designed to supersede the DVD format, and is capable of storing several hours of video in high-definition (HDTV 720p and 1080p) and ultra high-definition resolution (2160p). The main application of Blu-ray is as a medium for video material such as feature films and for the physical distribution of video games for the PlayStation 3, PlayStation 4, and Xbox One. The name "Blu-ray" refers to the blue laser (actually a violet laser) used to read the disc, which allows information to be stored at a greater density than is possible with the longer-wavelength red laser used for DVDs.
The plastic disc is 120 millimetres (4.7 in) in diameter and 1.2 millimetres (0.047 in) thick, the same size as DVDs and CDs. Conventional or pre-BD-XL Blu-ray discs contain 25 GB per layer, with dual-layer discs (50 GB) being the industry standard for feature-length video discs. Triple-layer discs (100 GB) and quadruple-layer discs (128 GB) are available for BD-XL re-writer drives.High-definition (HD) video may be stored on Blu-ray discs with up to 2160p resolution (3840×2160 pixels) and at up to 60 frames per second. DVD-Video discs were limited to a maximum resolution of 480p (NTSC, 720×480 pixels) or 576p (PAL, 720×576 pixels). Besides these hardware specifications, Blu-ray is associated with a set of multimedia formats.
The BD format was developed by the Blu-ray Disc Association, a group representing makers of consumer electronics, computer hardware, and motion pictures. Sony unveiled the first Blu-ray disc prototypes in October 2000, and the first prototype player was released in April 2003 in Japan. Afterwards, it continued to be developed until its official release on June 20, 2006, beginning the high-definition optical disc format war, where Blu-ray Disc competed with the HD DVD format. Toshiba, the main company supporting HD DVD, conceded in February 2008, and later released its own Blu-ray Disc player in late 2009. According to Media Research, high-definition software sales in the United States were slower in the first two years than DVD software sales. Blu-ray faces competition from video on demand (VOD) and the continued sale of DVDs. Notably, as of January 2016, 44% of U.S. broadband households had a Blu-ray player.