Tracks A9 to A13 were previously released as Kangrena "Terrorismo Sonoro" 7"EP in 1983 on Anarchi Rekords.
Tracks B7 to B11 were previously released as Codigo Neurotico 7"EP in 1983 on Ddomèstic Records.
Other tracks taken from demo tapes and previously unreleased on vinyl.
Tracks A1 to A3 were recorded in 1984.
Tracks A4 to A8 were recorded live in 1982.
Tracks B1 to B6 were recorded in Winter 1984.
Printed innersleeve with pictures and info about the bands.