LaserDisc

Optical analog video disc format LaserDiscA LaserDisc being heldMedia typeOptical discEncodingNTSC, PAL, MUSE, HD‑MAC, PALplusCapacity60/64 minutes on CLV30/36 minutes on CAV(NTSC/PAL, per side)Read mechanism780 nm laser diode (early players used He‍–‍Ne laser)StandardLaserVisionDeveloped byMCAPhilipsPioneerDimensionsCommon: 300 mm (11.8 in)Less common: 200 mm (7.9 in), 120 mm (4.7 in)UsageHome videoExtended toCDDVDLV-ROMReleasedDecember 11, 1978 (1978-12-11) (as DiscoVision)1980 (as LaserDisc)DiscontinuedSeptember 21, 2001 (films)July 2009 (production) Optical discs General Optical disc Optical disc drive Optical disc authoring Authoring software Recording technologies Recording modes Packet writing Burst cutting area Optical media types Compact disc (CD): CD-DA, CD-ROM, CD-R, CD-RW, 5.1 Music Disc, Super Audio CD (SACD), Photo CD, CD Video (CDV), Video CD (VCD), Super Video CD (SVCD), CD+G, CD-Text, CD-ROM XA, CD-i, MIL-CD, Mini CD Digital Versatile Disc (DVD): DVD-R, DVD+R, DVD-R DL, DVD+R DL, DVD-R DS, DVD+R DS, DVD-RW, DVD+RW, DVD-RAM, DVD-D, DVD-A, DVD-Video, HVD, Flexplay, EcoDisc, MiniDVD Blu-ray Disc (BD): BD-R & BD-RE, Blu-ray 3D, Mini Blu-ray Disc, 4K Blu-ray (Ul