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


  • On the Materiality of the Audio-Visual Heritage at the Elías Querejeta Zine Eskola in Donostia (San Sebastián), Spain, from 17 to 20 October and on 30 November 2023 [en]
  • Filmkonservierung und -restaurierung at Hochschule der Künste Bern on 1 November 2023 [de]
  • “Recipes for Disaster” by Helen Hill at Orphan Film Symposium at Museum of the Moving Image in Astoria, New York City, United States of America, from 10 to 13 April 2024 [en]
  • Open-Source Tools and Resources for Audio-Visual Archives at Elías Querejeta Zine Eskola in Donostia (San Sebastián), on from 4 to 7 June 2024 [en]

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