When credited as DUOPHONIC.DE or www.duophonic.de in the CD matrix or vinyl runout please credit Duophonic.de instead of this page.
Vinyl pressings are sometimes credited as "duo200YXXXX" in the vinyl run-out area. First 4 numbers indicate the year of pressing, start at 2005.
The records can also be cut at Duophonic by the owner Moritz Illner. In this case the initials "MI" appear in matrix on both sides, which can be easily mistaken as "MD".