The phrase "EP 284 SUB" commonly refers to the available subbed version of a specific show or podcast episode. Depending on what you are looking for, it likely points to one of the following:
Titled "A People's Prayer," where Goku continues his battle against Kid Buu. Podcasts EP 284 SUB
Titled "I Won't Let Go of the Blueprints! Franky's Decision." This episode features Franky burning the Pluton blueprints in front of Spandam. The phrase "EP 284 SUB" commonly refers to