An example of a Loose Dog catalog number
Loose Dog is an unofficial record label that produced multiple unofficial Weezer and The Rentals bootlegs in the '90s and early 2000s. Most of their releases feature typos and erroneous song titles on the artwork. Based on the fact that every release is labeled with a catalog number such as "LOOSE-###" we can assume that there could be more bootlegs out there from this label that have not surfaced.
The Rentals Releases