Global Influence Preserving Moving Images from Environmental Movements in the West, 1920-2000

Digitization Guidelines

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The Grand Canyon, Living River Living Canyon

The films in this collection were digitized by The Media Preserve, located in Pennsylvania. Bancroft worked closely with the vendor to ensure that all digitally reformatted film followed best practices and guidelines for digitized audiovisual materials provided by the California Audiovisual Preservation Project (CAVPP), now the California Revealed (CA-R) project. All 8mm and 16mm were transferred in high definition and videotapes were captured in standard definition, maintaining the original aspect ratios. Many films chosen for digitization are unique and camera originals.

Technical Specifications


Film Digitization Specifications

Preservation Master : Uncompressed 10-bit Quicktime, 4:2:2 YUV, 1920x1080, 4:3, 23.98 fps, 48 kHz 24-bit PCM audio stream

Access Copy : H.264 MPEG-4, AVC, 1920x1080, same as source, 23.98 fps, AAC 44.1 kHz 192kb/s stereo audio stream

Video Digitization Specifications

Preservation Master : Uncompressed 10-bit Quicktime, 4:2:2 YUV, 720x486, 4:3, 29.97 fps, 48 kHz, 24-bit PCM audio stream

Access Copy : H.264 MPEG-4, AVC, 720x486, 4:3, 29.97 fps, AAC 44.1 kHz, 192 kb/s stereo audio stream