Martinjak, a security engineer from Cincinatti, met Hunger, who was a graphic designer from Manchester, in 2003 on some online music forum. They later collaborated through the internet and produced their music that way. Hunger was known to produce the beats and give them to Martinjak while he records his vocals and uploads them, Hunger later downloads the files then uses them to mix tracks. Dual Core was an unusual for a nerdcore act in that it is composed of a rapper and a producer; most nerdcore rappers produce their own beats. Martinjak and Hunger did not meet in person until somewhat after 2007.