Thread:Wile e2005/@comment-33323958-20180117205211/@comment-12684213-20180118005733

It means it was made by that company before it was added to that SFX library. For example, the Sound Ideas, RICOCHET - CARTOON RICCO, 01 was originally an MGM SFX (heard in many Tom & Jerry, Droopy, and Tex Avery directed cartoons).