Joshua Lane of Animated Bliss has personally verified the info with John Sirabella, President of Media Blasters:
AnimeWorks is ready to rain down Zim’s doom upon the heads of animation fans everywhere with its release of Jhonen Vasquez’s Invader Zim. Anime fans have been screaming for this DVD release since Zim first aired on Nickelodeon in 2001 and now it’s finally here. Coming Spring 2004 will be the first of three double disc sets and a limited edition boxed set which promises to send fans’ blood racing through their veins like giant radioactive rubber pants. The pants command them!