LD-ROM

LD-ROM

The LD-ROM format was developed by Pioneer and introduced in 1993 for use with the LaserActive, a hybrid LaserDisc player, video game console, and CD player. Unlike LV-ROM, which used constant angular velocity for frame-accurate video playback, LD-ROM employed constant linear velocity, like had been done with LaserDisc extended play. LD-ROM discs offered storage capacity reaching up to 540 MB of digital data per side on a typical 300-millimeter (12 in) disc, the same as an early CD-ROM, in addition to 60 minutes of analog video and audio storage, which could be used for cutscenes in full-motion video. A smaller 200 mm (8 in) disc was also available, offering a reduced capacity. The format used a different file system from LV-ROM, and analog video/audio quality was affected by the CLV encoding approach.