Here is the actual list of the distributors from which you can get HD. More labels to come soon:

Cyprus: Eye Hate the Music Business
Finland: Firebox, Some Place Else
Germany: Raging Bloodlust
Greece: Sleaszy Rider
Israel: Totalrust Music
Sweden: Ominous Recordings
UK: Cold Spring, Aesthetic Death
USA: Red Stream
Poland: Diachell Musik