We actually had quite a few of those things,we thought it was the best thing since sliced bread.
The one we had used a needle like a record player,sort of.When it wore out we couldn't find another one so in the attic it went.It may still be up there

Then we bought a VCR,then we could record a movie.
and no ones collection would be complete without an 8-Track Recorder,so you can record your own 8-Tracks to play in the car WHOO
HOO!
http://aroundcny.com/technofile/texts/laserdisc88.html