Dubai 2013

FFile Formats at The Dutch Institute

for Sound and Vision

Ernst van VelzenCIODutch institute for Sound sound and VisionEvvelzen@beeldengeluid.nl

DIGITAL FORMATS

IMAGES FOR THE FUTURE, LEGACY

• Digitize 120.000 hours of video– Simple choice: digitize the Digibeta tape to MXF D10-50 and ad

them to the Born digital collection in our digital archive.

– Same for older formats like BCN VHS etc.

• Digitize most of our audio tapes: 300.000 hours– BWF 24bit 48 kHz, same as the born digital material

– Music BWF 24bit 96 kHz, there was no born digital eqivalent becouce music was not part of the “digital facility”

• What to do with the 17.500 hours of Film we have to digitize?

Film, the quest for a solution

• We would not digitize everything to MXF SD or HD– The film material contained more information than a SD

resolution.

– XDCAM-HD is heaviley compressed: long gop

– Not suitable for 4x3 material: Pillar Bars

– How to handle frame rates: 18, 24

• We conciderd HDCAM SR– Expensive

– What to do with different frame rates etc

– legacy format, not a file format

RESOLUTIONS

USE OF JPG2000 FOR PRESERVATION

• Industry focused on DCI DCDM / DCP

• No standard for MXF container (SMPTE 422M)

• Little tools available for validating / controlling of code stream

• Little benefits in storing mathematically lossless over direct output DPX format (50%) reduction

• A lot of processing power is needed

WY: DPX?

• We developed a complete workflow were we produced DPX. The onley reason to look for compression was storage

• We bought our own Tape robot to backup al our material (15PB LTO5). Against marginal cost we could store 6 PB

• Problem solved! DPX is our archive master for Film. XDCM-HD derived from the DPX for immedite use in the digital facility– Use AXF as a wrapper for DPX to do partial file retrieval. We

now use TAR.

• Top collection nitrate even on 4K

14/10/10

HD / 2K WORKFLOW DATA SCANNING

WRITE

LTO4