Stargate SG-1, Gadmeer Specimen Disc

original movie prop

In fourth season episode Scorched Earth, biological samples of the otherwise extinct Gadmeer race (and their home planet's flora and fauna) are preserved in racks of these discs aboard a huge terraforming spaceship. 

Also seen in sixth season episode Memento, where the prop serves as a data storage device containing information about Tagrea, a planet where the Prometheus and SG-1 team find themselves stranded.

4-part acrylic construction, with etched and vinyl tape details, and a multicolored blob of organic-looking material in the center.

From Xena Museum.