High definition

• Blu-ray Disc, the universal optical High Definition disc format • HD Photo, former name for the JPEG XR image file format • HDV, format for recording high-definition video onto magnetic tape • HiDef, 24 frames-per-second digital video format • High-Definition Multimedia Interface (HDMI), all-digital audio/video interface capable of transmitting uncompressed streams • High-definition television (HDTV), television signals and apparatus with higher resolution than their contemporary counterparts • Ultra-high-definition television, a further step in television resolution, but not a successor. • High-definition video, used in HD broadcasting, digital film, computer HD video file formats, and video games == Audio technologies ==

• Dolby TrueHD, lossless audio compression codec • DTS-HD Master Audio, lossless audio compression codec • High Definition Compatible Digital, discontinued digital audio optical disc format • High-definition audio, general marketing term for high fidelity audio products and services • Intel High Definition Audio, 2004 Intel specification for hardware and associated drivers for Personal computer audio • Wideband audio, also known as HD voice, is high definition voice quality for telephony audio == Music ==

• "Hi-Definition", 2008 single from ''Lupe Fiasco's The Cool'' • High Definition (Joe Morris album), 2008 • High Definition (Shootyz Groove album), 1999 • "High Definition", a single from Waterparks' 2019 album, Fandom == Other ==

• High Definition (radio program), 2006 Canadian radio program • High-definition map, used in autonomous driving