Was it a top loader or a tray? I pulled apart an old InfoTrac library system that used a Pioneer LD-V1000 since CD-ROM drives were not yet available. Top loader, CAV disks only. Real He-Ne laser on the sled. The Centronix connector was a proprietory parallel port controlling video playback, getting frame # and it allowed reading digital data if it was recorded in that format (video playback was still NTSC, no digital at all, not even a frame buffer). citing http://www.laserdiscarchive.co.uk/laserdisc_archive/pioneer/pioneer_ld-v100… This is an NTSC laser disc player that was used in Astron Belt (with proper hardware), Badlands (with different EPROM), Casino Strip, Cobra Command (with proper hardware), Dragon's Lair, Esh's Aurunmilla, Galaxy Ranger (with proper hardware), Interstellar, Space Ace, Super Don Quixote, and Thayer's Quest