Go to Gelbe Musik for very rare records and Cds.
Schaperstrasse 11 (Wilmersdorf)
open: Tuesday - Friday 1 p.m. - 6 p.m., Saturday 11 a.m. - 2 p.m.
This is one of Berlin's oldest record shops for alternative music. Good selection.
Buelowstrasse 5 (Schoeneberg)
open: Monday - Wednesday 11 a.m. - 7 p.m., Thursday & Friday 11 a.m. - 8 p.m., Saturday 11 a.m. - 4 p.m.