High-definition video or HD video refers to any video system of higher resolution than standard-definition (SD) video, and most commonly involves display resolutions of 1280×720 pixels (720p) or 1920×1080 pixels (1080i/1080p). This article discusses the general concepts of high-definition video, as opposed to its specific applications in television broadcast (HDTV), video recording formats (HDCAM, HDCAM-SR, DVCPRO HD, D5 HD, XDCAM HD, HDV and AVCHD), the optical disc delivery system Blu-ray Disc and the video tape format D-VHS.
HD Video Content:
High-definition image sources include terrestrial broadcast, direct broadcast satellite, digital cable, and high definition disc (BD), internet downloads and the latest generation of video game consoles. Most computers are capable of HD or higher resolutions over VGA, DVI, and/or HDMI.
The optical disc standard Blu-ray Disc can provide enough digital storage to store hours of HD video content. DVDs look best on screens that are smaller than 36 inches (91 cm), so they are not always up to the challenge of today's high-definition (HD) sets. Storing and playing HD movies requires a disc that holds more information, like a Blu-ray Disc.
HD Video on the Web:
A number of online video streaming/on demand and digital download services offer HD video, among them YouTube, Vimeo, Hulu, Amazon Video On Demand, Netflix Watch Instantly, and others.
HD Video in Gaming:
The PlayStation 3 and Xbox 360 game consoles are able to output up to 1080p through both component and HDMI cables. Besides the visual quality of games, users can also download HD movies and video clips from the PlayStation Network or Xbox Live Marketplace services to their respective consoles. The PlayStation 3 can also play Blu-ray Discs that contain HD data.
Standard High-Definition video modes: 720p (1280 x 720), 1080i (1920 x 1080Interlaced), and 1080p (1920 x 1080)
Extra High-Definition video modes: 2k (2048×1536), 2160p (3840×2160), 4k (4096×3072), 2540p (4520×2540), and 4320p (7680×4320)
Related Software
WinX HD Video Converter Deluxe : built in hundreds of A/V codecs and equipped with DVD Burner, Website Video Downloader function. As all-in-one HD Video Converter software, it helps you transcode among HD video formats like convert AVCHD M2TS to MKV, convert Blu-ray to MKV, MKV to MP4, etc. Moreover, it is embed with numerous profile settings for Apple, Sony, Microsoft portable devices as well as iOS, Android, Symbian mobile Phones. Convert MKV to iPhone, convert MKV to iPad are good examples.
WinX HD Video Converter for Mac: Excellent HD Video Converter for Mac, compatible with Mac OS X Tiger/Leopard/Snow Leopard. Fully support convert Blu-ray video, HD camcorder video, HDTV video. Support convert SD, HD video onto iPhone, iPad, iPod, Apple TV, etc.
Related Source
AVCHD, Blu-ray Disc, VLC, Mplayer, The KMPlayer, QuickTime, MOD
Related External Source
www.divx.com
http://en.wikipedia.org/wiki/DivX
