Join a local . Many collectors have hundreds of 3D discs and are happy to lend them out to fellow fans – for free – because they want to keep the format alive.
To get these for (digitally), follow the Internet Archive again. Archivists upload "3D BD Remux" samples (5-minute clips) to test your setup before importing a $60 disc.
Based on critical acclaim and sales, these are among the most popular titles officially released on the format: Walking with Dinosaurs
: A user-curated list of major theatrical 3D releases, often updated with IMDb ratings.