Personally, I wouldn't count on ProRes for posterity nor QuickTime. I'd go with an open codec and a future proof wrapper (if such a thin exists). One of the big advantages of DNxHD over ProRes is that it's a SMPTE standard, ProRes in the other hand is subject to changes by Apple.
What I like about ProRes is that it will work for SD and HD, DNxHD is only for HD resolutions, the dilemma for me is to pick an SD codec open enough to be considered future proof and visually lossless and compatible with Mac, Windows and Linux if possible. IMX50 would be the closest to that even though it's mpeg2 based and not as efficient as ProRes in terms of quality.
Here's a book that talks about the matter https://www.oscars.org/science-technology/sci-tech-projects/digital-dilemma
I reserve the right to be wrong. ;)
I'm hoping the subject-line gets your attention and accurately reflects a dilemma. This post is about archiving/digitizing NTSC legacy work/tapes.
I'm trying to balance competing concerns and issues to help a colleague do a fairly large archiving/digitizing project for a career's worth of work. He owns an Avid of recent vintage and a digiBeta deck. Working in an Avid environment, one normally likes to capture native and lossless for posterity. My technically well-informed producer colleague believes that ProRes is more than satisfactory for his posterity needs. In our case "native" means 601 color space, rectangular pixels, 720x486 dimensions and interlace right?
After a discussion with him we arrived with this interim plan I'm vetting with all of you… capture/create the above native file (his Avid has ProRes as a capture/compression flavor) - export that Quicktime and call it the digital "master" from which other files will be made.
At a minimum one would want to make from that a high quality mp4 that is square pixel, RGB color space, true 4x3 (720x540) and progressive to play on all computer and tablet screens for the foreseeable future. How does that sound?
If the colleague ever wants to edit these digitized legacy files, he would work from the native ProRes files and export to whatever the target format is.
Thanks in advance for any feedback.
Best,
Paul
p.s. The interim plan is to capture digiBeta tapes at (regular) ProRes and BetaSP at ProRes LT
------------------------------------
------------------------------------
this is the Avid-L2
------------------------------------
Yahoo Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Avid-L2/
<*> Your email settings:
Individual Email | Traditional
<*> To change settings online go to:
http://groups.yahoo.com/group/Avid-L2/join
(Yahoo! ID required)
<*> To change settings via email:
Avid-L2-digest@yahoogroups.com
Avid-L2-fullfeatured@yahoogroups.com
<*> To unsubscribe from this group, send an email to:
Avid-L2-unsubscribe@yahoogroups.com
<*> Your use of Yahoo Groups is subject to:
https://info.yahoo.com/legal/us/yahoo/utos/terms/
Agustín Goya
(Sent from a mobile device, please excuse any typo)
Posted by: Agustin Goya <agustingoya@gmail.com>
| Reply via web post | • | Reply to sender | • | Reply to group | • | Start a New Topic | • | Messages in this topic (4) |
No comments:
Post a Comment