Specifications

Collections are being digitized according to international standards and best practices. Whenever possible, an effort has been made to achieve an appropriate balance between accessibility, image/sound quality and file size. Here are the digitization specifications for each collection:

International Institute of Intellectual Cooperation (IICI)

Content Type: Documents (unbound): Archival Files
Master File Format: JPEG2000
Access File Format: PDF/A
Resolution: 400ppi
Bit Depth: 16
Colour

UNESCO General Conference and Executive Board documents

Content Type: Bound volumes: General collections
Master File Format: JPEG2000
Access File Format: PDF/A
Resolution: 300ppi
Bit Depth: 8
Colour

Sound Recordings 

Content Type: Audio: 1/4" magnetic tapes
Master File Format: WAV
Access File Format: .mp3
Resolution: 48 kHz / 24 bit
Compression: Uncompressed (PCM)

Photographs

Content Type: Prints and Photographs
Master File Format: JPEG2000
Access File Format: PDF/A
Resolution: 600ppi
Bit Depth: 16

Films and Videos

Content Type: Visual: Film, 16mm
Master File Format: Apple QuickTime/ Compression : Apple ProRes 422 HQ (.mov)
Access File Format: Mpeg4 
Resolution: HD (1920x1080)
Compression: ProRes

Content Type: Visual: Video, Umatic
Master File Format: Apple QuickTime/ Compression : Apple ProRes 422 HQ (.mov)
Access File Format: Mpeg4 
Resolution: SD (maintain 4:3 aspect ratio)
Compression: ProRes