AV Preservation by reto.ch

If it’s not awesome, we don’t do it.


Création de la serpentine

A stencil-coloured print of
Création de la Serpentine by Segundo de Chomón,
Pathé Frères, France 1908
(Courtesy by Österreichisches Filmmuseum, the Austrian Film Museum)


We are a highly skilled moving image conservation and restoration company, partly operating at the Lichtspiel in Bern, Switzerland. Our team provides worldwide comprehensive services that encompass the whole range of audio-visual preservation, offering Swiss quality at a competitive price. We have a particular commitment to the dissemination of low-technology and low-energy audio-visual conservation and restoration techniques. We support open-source projects which we believe are beneficial for the archival community. We are running the Swiss Film and Video Directory.

Our Services Include

  • film digitisation for both preservation and access purposes
  • digital moving image and sound restoration
  • files and data transformation
  • migration and maintenance of digital archives
  • research, training and consultancy on audio-visual preservation


  • Medienkunst: Technologie und Erhaltungsstrategien III at the Akademie der bildenden Künste in Vienna, Austria, on 14 and 15 June 2023 [de]
  • Methoden/Tools zur Bewältigung von sehr vielen AV-Dateien / Méthodes/outils pour gérer un très grand nombre de fichiers AV at Memoriav Fachtagung / Journée professionnelle Memoriav “Too Big to Archive” in Bern on 21 June 2023 [de fr]
  • Bash Scripts for Audio-Visual Preservation at the IASA Conference in İstanbul, Türkiye, from 11 to 14 September 2023 [en]
  • On the Materiality of the Audio-Visual Heritage at the Elías Querejeta Zine Eskola in Donostia (San Sebastián), Spain, from 17 to 20 October 2023 [en]
  • Filmkonservierung und -restaurierung at Hochschule der Künste Bern on 1 November 2023 [de]

Patronage of the Arts and the Sciences

  • AMIA, the Association of Moving Image Archivists
  • FIAF, the International Federation of Film Archives
  • IASA, the International Association of Sound and Audiovisual Archives
  • No Time to Wait 7 at Národní Filmový Archiv in Prague, Czech Republic, from 8 to 10 November 2023
  • RAWcooked, the bridge between uncompressed and lossless compressed files