Hugo Helfenstein
recording, editing, mastering and production of audio CDs
digitising of analogue audio tapes and gramophone records

500EX.
mastering of the audio-CD supplement to the magazine «500EX. FÜR BILD & TEXT»
Passamezzo Brass Quintet
recording, mastering and production
René Twerenbold Big Band
remastering of the analogue live recording at the Theater Casino Zug in 1988
Musikschule der Stadt Zug
concept, recording, mastering and production of 11 CDs and various MCs
and many more