Editing Optical disc (section)

===Third-generation===
Third-generation optical discs are used for distributing [[HDTV|high-definition video]] and videogames and support greater data storage capacities, accomplished with short-wavelength visible-light lasers and greater numerical apertures. Blu-ray Disc and HD DVD uses blue-violet lasers and focusing optics of greater aperture, for use with discs with smaller pits and lands, thereby greater data storage capacity per layer.<ref name="Crutchfield Advisor" />
In practice, the effective multimedia presentation capacity is improved with enhanced video [[data compression]] [[codec]]s such as [[H.264/MPEG-4 AVC]] and [[VC-1]].

* [[Blu-ray]] and derivatives (up to 400&nbsp;GB - experimental<ref>{{cite web|last=Ricker|first=Thomas|date=2008-07-07|title=Pioneer's Blu-ray disc hits 400GB across 16-layers|url=https://www.engadget.com/2008/07/07/pioneers-blu-ray-disc-hits-400gb/|url-status=live|archive-url=https://web.archive.org/web/20170824205025/https://www.engadget.com/2008/07/07/pioneers-blu-ray-disc-hits-400gb/|archive-date=2017-08-24|website=www.engadget.com}}</ref><ref>{{cite web | website = www.gizmag.com | url = http://www.gizmag.com/pioneer-develops-16-layer-400-gb-optical-disc/9598/ | title = Pioneer's 400 GB Blu-ray Disc | date = 8 July 2008 | url-status = live | archive-url = https://web.archive.org/web/20130925124548/http://www.gizmag.com/pioneer-develops-16-layer-400-gb-optical-disc/9598/ | archive-date = 2013-09-25 }}</ref>)
** [[Blu-ray Disc recordable|BD-R and BD-RE]]
** [[High Fidelity Pure Audio]]
** [[AVCHD]] and [[AVCREC]]
** BDXL and Blu-ray 3D
** [[Ultra HD Blu-ray|4K Blu-ray]] and 8K Blu-ray<ref>{{cite web|url=https://displaydaily.com/blu-ray-disc-association-settles-on-8k-format/|title=Blu-ray Disc Association Settles on 8K Format|first=Chris|last=Chinnock|date=January 22, 2018|access-date=August 24, 2023}}</ref>
* [[Nintendo optical discs#Wii U Optical Disc|Wii U Optical Disc]] (25 GB per layer)
* [[HD DVD]] (discontinued disc format, up to 51&nbsp;GB triple layer)
* [[China Blue High-definition Disc|CBHD]] (a derivative of the HD DVD format)
* [[HD VMD]]
* [[Professional Disc]]
Announced but not released:
* [[Digital Multilayer Disk]]
* [[Fluorescent Multilayer Disc]]
* [[Forward Versatile Disc]]

====Blu-ray and HD-DVD====

The third generation optical disc was developed in 2000–2006 and was introduced as Blu-ray Disc. First movies on Blu-ray Discs were released in June 2006.<ref>{{cite web|last=Drawbaugh|first=Ben|date=June 19, 2006|title=HD DVD and Blu-ray movies released on June 20th 2006|url=https://www.engadget.com/2006/06/19/hd-dvd-and-blu-ray-movies-released-on-june-20th-2006/|url-status=live|archive-url=https://web.archive.org/web/20180411111451/https://www.engadget.com/2006/06/19/hd-dvd-and-blu-ray-movies-released-on-june-20th-2006/|archive-date=2018-04-11|publisher=Engadget International Editions}}</ref> Blu-ray eventually prevailed in a [[high definition optical disc format war]] over a competing format, the [[HD DVD]]. A standard Blu-ray disc can hold about 25&nbsp;GB of data, a DVD about 4.7&nbsp;GB, and a CD about 700&nbsp;MB.

[[File:Comparison CD DVD HDDVD BD.svg|thumb|300px|Comparison of various optical storage media]]