First demo 'Demo 09/10' - http://www.archive.org/details/InfiniteGrievanceDemo20092010
Second demo 'II' - http://www.archive.org/details/InfiniteGrievance2
Third demo/EP 'Delusions of Clarity' - http://www.archive.org/details/InfiniteGrievanceDelusionsOfClarity
The fourth demo/EP [whatever you want to call it] is 100% complete. Track list and title coming soon.