Videodiscs, also known as laser discs, are a type of digital optical disc used for storing video content. There are a few different synonyms for videodiscs, including LD (short for LaserDisc), VLP (Video Long Play), and CAV (Constant Angular Velocity). These terms typically refer specifically to the laser disc format, which was popular in the late 1970s and 1980s before being replaced by DVD technology. Other related terms include VCD (Video CD), which is a similar format that stores video content on a CD rather than a larger disc, and Blu-ray Disc, which is a later iteration of the DVD format that offers improved video quality and other advanced features.