You can buy Biesentales-CDRs online here or directly at the stores listed below

BERLIN:
BIS AUFS MESSER Marchlewskistr. 107, 10243 Berlin, +49 30 20 68 72 91
DENSE RECORD SHOP, Petersburger Str 81, 10247 Berlin, +49 30 44 34 02 92
SUPALIFE KIOSK Raumerstrasse 40, 10437 Berlin
LEILA M im Kino Babylon, Rosa Luxemburg Str.30, berlin

HAMBURG:
FREIHEIT UNF ROOSEN , Paul-Roosen-Str.41/Kleine Freiheit 90, hamburg

Numbers of CDs in stores are very small, so it’s recommended to contact them, before you travel there.

This list should be expanding soon.