I virtually never find discs out in the wild in the US. And when I do, I almost always pass on them because they're usually trashed and/or water damaged.
However, I did find these last weekend at a local thrift store that I often pick up other diamonds in the rough from.
I have a toddler that's starting to get into Disney, so I've been expanding my collection. Last week, I got the Masterpiece Lion King boxed set. I already have a lot (probably a dozen) Disney Home Video CLV discs, I think I'm going to try to get the CAV releases instead.
I have one of these CLD-A100 units in storage, just waiting for new belts and a recap. I picked it up a couple years ago from Japan, for absurdly cheap as "junk". It came with the Sega module.
Here are two projects I've come across by accident that I thought were fascinating.
The first is the Domesday Duplicator. This rather expensive open source project rips the raw laserdisc data, ensuring the best possible way to archive the material. One small drawback, one side of laserdisc data will give you a 160GB file!
The system can also be used to get the raw data from VHS tapes as well. I was quite surprised, as long as the tape was properly made in the first place, how good VHS looks in its purest form. Obviously, depending on your connection to the TV, the quality would be degraded somewhat.