I'm following up on a 2008 discussion on archival video formats:
That discussion contrasted ProRes to DV. I'm still in learning mode, but my understanding is ...
The ProRes family is Apple FCP specific - no other software can read or write it.
ProRes is lossless, DV is lossy. There's some expansion going from DV to ProRes (amount?).
Because DV is lossy, a DV project produced from a DV original will lose some quality. A ProRes file created from a ProRes original would not have quality loss.
DV is a label for a set of formats that have evolved since the 1990s. So a DV file from 2000 is not necessarily the same as a DV file from 2010. As media evolves over time software may stop rendering early generation DV correctly even as it renders late generation.
The Library of Congress doesn't consider any archival video format acceptable, but considers MJPEG the best of the bad (but there are probably audio sync issues).
I wonder if, given the state of video formats (volatile and patent laden) there's something to be said for using a minimally compressed h264 video format as an 'archival' format. In other words, take a set of DV media of different generations, and norm it to a h264/mpeg video with minimal compression (25+MB/sec data, mininal frame loss, etc). A 30GB DV file, for example, might become a 25GB h264 file. There'd be some quality loss, but at least everything would be normed to a 2012 baseline. In ten years that video would then be (probably) convertible to a lossless archival format assuming 1000 TB drives and some resolution of the IP issues.
Any thoughts from the experts? Is there any guidance on compression settings to produce "archival" h264?