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MXF+JPEG-2000+HDD = Future of Video Preservation?
Anonymous Archivist writes "Media Matters, a technical consultancy specializing in archival audio and video material, recently completed a Mellon Foundation funded Digital Video Reformatting Preservation Project for the Dance Heritage Coalition. They conclude that MXF is the recommended container format, JPEG-2000 is the recommended encoding format and HDD is the recommended storage media. It's a very valuable series of experiments and offers a strong indication of where the archival preservation of analogue video is heading."
JPEG standart defines several encoding formats, which include lossless compression as well
" The Material eXchange Format (MXF) is an open file format targeted at the interchange of audio-visual material with associated data and metadata. It has been designed and implemented with the aim of improving file based interoperability between servers, workstations and other content creation devices. These improvements should result in improved workflows and result in more efficient working than is possible with today's mixed and proprietary file formats." -- What is MXF
To make laws that man cannot, and will not obey, serves to bring all law into contempt.
--E.C. Stanton
Avoiding inter-frame compression means that, if you have some small amount of data corruption, you only get one, maybe two corrupted frames of video.
When there isn't patent litigation surrounding the format.
If you mirror across two disks and put the into storage, and one develops some minor errors, it is not possible to tell which one has the errors
Exceptionally incorrect, prepare for smackdown.
All data on a hard disk is protected by very sophisticated error detection and correction elgorithms. The chance of getting "some minor errors" is effectively nil - either they are corrected by the disc's controller, or the controller returns a "sector unreadble" error - which is what keys any effective mirroring system to go get the data from the second disk. You just don't get bad data from modern hard disks.
This is why God RAID-5 was invented.
No, raid-5 was invented to maintain the I in RAID. Mirroring doubles your costs, RAID-5 only increases them by one disk out of the N disks in the parity group, where N is usually but not limited to 4-5 drives.
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