Definição do conceito
[POR] Versatile Multilayer Disc (VMD) (HD-VMD) | O Versatile Multilayer Disc (VMD ou HD VMD), em português Disco Versátil de Múltiplas Camadas, é um disco de armazenamento de dados de multiplas camadas o que permite um considerável aumento em sua capacídade, é desenvolvido pela empresa New Medium Enterprises (NME), e tem exatamente o mesmo tamanho e espessura de um DVD. | FONTE : Versatile Multilayer Disc. in: Wikipedia. Disponivel em : https://pt.wikipedia.org/wiki/Versatile_Multilayer_Disc Acesso em : 23 nov. 2022
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[SPA] HD-VMD | El VMD o HD-VMD, sigla del inglés High Definition-Versatile Multilayer Disc, traducido como "disco versátil multicapa de alta definición", es un tipo de discos ópticos que disponen de una tecnología que utiliza la capacidad del láser rojo diseñado por New Medium Enterprises, Inc. | VMD es un formato que intenta competir con otro gran formato de la alta definición que utiliza el láser azul, Blu-ray (BD), los cuales llegan a una capacidad de entre 40 y 50 GB de memoria. | En el CeBIT de marzo de 2006, NME mostró un prototipo de reproductor VMD y anunció que esperaban lanzar el formato en el tercer trimestre de ese mismo año. Su intención, para competir contra estos formatos e introducirse en el mercado, es comenzar por el mercado chino e indio para más tarde expandirse por el este de Europa, Rusia y América del Sur. Tenían en mente firmar un contrato con compañías productoras de Bollywood como Eros Group intentando lanzar al menos 50 películas antes del fin de año de 2006. | En el Consumer Electronics Show de 2007 se presentó el primer reproductor de películas VMD al precio de 175 dólares, que es una clara ventaja frente a otros reproductores de alta definición que tenían costos mayores de 500 dólares. Se espera que realmente se lance el formato acompañado de este reproductor en los distintos países. | FUENTE : HD-VMD. in: Wikipedia. Disponible en : https://es.wikipedia.org/wiki/HD-VMD Acceso en : 23 nov. 2022
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[ENG] Versatile Multilayer Disc (VMD) (HD-VMD) | Versatile Multilayer Disc (VMD or HD VMD) was a high-capacity red-laser optical disc technology designed by New Medium Enterprises, Inc. VMD was intended to compete with the blue-laser Blu-ray Disc and HD DVD formats and had an initial capacity of up to 30GB per side. At a physical level, VMD is identical to DVD, but with the possibility of using more layers. | TECHNICAL SPECIFICATIONS | Disc format: The format uses approximately 5 GB per layer, which was similar to standard DVDs. Standard VMDs can use 4 layers, for 20 GB of storage. The rarer 8 and 10 layered discs store 40 GB to 50 GB, respectively.[14] One manufacturer listed up to 20 layers on a disc being possible in the future. | 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 GB. Hitachi announced a 4 and 6 layer version of Blu-ray as well, capable of 100 GB and 200 GB respectively. A standard 4-layer VMD stored 20 GB, which was comparable to a 1-layered HD DVD (15 GB) and 1-layer Blu-ray Disc (25 GB). | Content format : The HD VMD format is capable of high-definition video resolutions up to 1080p which is comparable with 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 Mbit/s) and Blu-ray (48 Mbit/s). There was the possibility that VMD discs could be encoded with the H.264 format in the future. | The HD VMD format supports up to 7.1-channel Dolby Digital, Dolby Digital Plus, and DTS audio output, though it will not offer Dolby TrueHD or DTS-HD Master Audio surround sound codecs. | SOURCE : Versatile Multilayer Disc. in: Wikipedia. Available at : https://en.wikipedia.org/wiki/Versatile_Multilayer_Disc Accessed : 23 nov. 2022.
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