Editing Versatile Multilayer Disc (section)

==Technical specifications==

===Disc format===
The format uses approximately 5&nbsp;GB per layer,<ref name="hvdtech">[http://www.nmeinc.com/technology.aspx NME - New Medium Enterprises - HD VMD, High Definition Players and Movies<!--Bot-generated title-->] {{webarchive |url=https://web.archive.org/web/20071225181247/http://www.nmeinc.com/technology.aspx |date=December 25, 2007 }}</ref> which was similar to standard [[DVD]]s. Standard VMDs can use 4 layers, for 20&nbsp;GB of storage. The rarer 8 and 10 layered discs store 40&nbsp;GB to 50&nbsp;GB, respectively.<ref>[https://www.engadget.com/2007/08/30/nme-fleshes-out-40gb-hd-vmd-discs-hardware-still-prepping-for/ NME fleshes out 40&nbsp;GB HD VMD discs, hardware, still prepping for launch - Engadget<!--Bot-generated title-->]</ref> One manufacturer listed up to 20 layers on a disc being possible in the future.<ref name="hvdtech" />

The Blu-ray Disc uses a blue-violet laser, rather than VMD's red laser, which means Blu-ray can store more information per layer. This format has so far only utilized 1 and 2-layered versions. In January 2007, [[Toshiba]] announced development on a triple layer HD DVD (TL51) that would have had a capacity of 51&nbsp;GB. Hitachi announced a 4 and 6 layer version of Blu-ray as well, capable of 100&nbsp;GB and 200&nbsp;GB respectively. A standard 4-layer VMD stored 20&nbsp;GB, which was comparable to a 1-layered HD DVD (15&nbsp;GB) and 1-layer Blu-ray Disc (25&nbsp;GB).

===Content format===

The HD VMD format is capable of [[high-definition video]] resolutions up to [[1080p]] which is comparable with [[Blu-ray Disc|Blu-ray]] and [[HD DVD]]. Video is encoded in [[MPEG-2]] and [[VC-1]] formats at a maximum bitrate of 40 Megabits per second. This falls between the maximum bitrates of HD DVD (36&nbsp;Mbit/s) and Blu-ray (48&nbsp;Mbit/s). There was the possibility that VMD discs could be encoded with the [[H.264]] format in the future. <ref name="pcw-070908" />

The HD VMD format supports up to 7.1-channel [[Dolby Digital]], [[Dolby Digital Plus]], and [[DTS (sound system)|DTS]] audio output, though it does not offer [[Dolby TrueHD]] or [[DTS-HD Master Audio]] [[surround sound]] codecs.