The author of Condensed Chaos, Phil Hine, is a Discordian... well, as much as any Chaote "is" anything. So Condensed Chaos is probably a Discordian work, but it has less to do with Discordia than it does with Chaos Magic.
His book "Prime Chaos" has two appendicies about neophilic irreligions, entitled Liber Nice and Liber Nasty. Liber Nice is about Discordia, and Liber Nasty is about Cthulhu cults. Hine gives a pretty good introduction to both groups, albeit from a rather occultish point of view.