Seasons 1 and 3 are remuxed from SpongeBob SquarePants: The First 100
Episodes
(http://web.archive.org/web/20240812104131/https://www.blu-ray.com/dvd/SpongeBob-SquarePants-The-First-100-Episodes-DVD/287475/).
Season 2 is remuxed from SpongeBob SquarePants: The Complete Second Season
(http://web.archive.org/web/20240812104456/https://www.blu-ray.com/dvd/SpongeBob-SquarePants-The-Complete-Second-Season-DVD/18970/).