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ProRes, Is there a workaround to backup to tape via fw
I know you can’t “print to video” from a ProRes 422 project. I’d like a solution similar to what I used for projects edited in hdv. With hdv, after an admittedly long conform on the way to print to video, I was able to back up my edited master to tape (using my Z1U hdv camcorder as the deck). I don’t want to rely on DVD media alone, and always prefer a tape backup.
Now that I’m editing my hdv footage in ProRes 422, is there any way I can maintain the image quality of the ProRes 422 project and make a tape backup over fw to my hdv camera (Z1U)?
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8 Replies
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[chris gorman] “I know you can’t “print to video” from a ProRes 422 project.”
Why not? Of course you can, we do that all the time.
[chris gorman] “Now that I’m editing my hdv footage in ProRes 422, is there any way I can maintain the image quality of the ProRes 422 project and make a tape backup over fw to my hdv camera (Z1U)?
“Nope, not with HDV tape. You’d have to save a file.
Walter Biscardi, Jr.
Biscardi Creative Media
HD and SD Production for Broadcast and Independent Productions.STOP STARING AND START GRADING WITH APPLE COLOR Apple Color Training DVD available now!
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Thanks for your input.
When you say “you’d have to save a file”, or you implying that by saving it as a file i could go out to tape without losing the benefit of the ProRes 422 quality?
I assume, but enlighten me if it’s otherwise, that I’d have to convert the ProRes proj. to hdv, and then, as usual conform on the way out to hdv tape via fw.
By doing that, would I lose what I had gained by working in ProRes eg. the higher quality rendering during editing?
Also, what are you using for your tape backup from ProRes?
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[chris gorman] “When you say “you’d have to save a file”, or you implying that by saving it as a file i could go out to tape without losing the benefit of the ProRes 422 quality? “
If you go to HDV, you lose all the benefits of ProRes. If you go to HDCAM then you maintain all the benefits of ProRes.
In your case, you have HDV so you’ll need to just save a Quicktime file from the ProRes timeline in order to maintain the ProRes quality.
Walter Biscardi, Jr.
Biscardi Creative Media
HD and SD Production for Broadcast and Independent Productions.STOP STARING AND START GRADING WITH APPLE COLOR Apple Color Training DVD available now!
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In your case, you have HDV so you’ll need to just save a Quicktime file from the ProRes timeline in order to maintain the ProRes quality.
You mean QT in hdv format? I want to back up to tape, so I’d have to import that QT hdv file and print to video to go to tape. Is this the same as if I just dropped the ProRes into an hdv timeline and did “print to video” from there.
I’m not sure why I should make a QT file. I suppose if I just made a QT with settings same as my ProRes TL, I wouldn’t lose quality, but I couldn’t back that up tape . . .i only have the hardware to back up to dv or hdv tape via fw.
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[chris gorman] “You mean QT in hdv format? I want to back up to tape, so I’d have to import that QT hdv file and print to video to go to tape. Is this the same as if I just dropped the ProRes into an hdv timeline and did “print to video” from there.”
No. Let’s start again.
You want to maintain the ProRes format of your timeline. You need to make a Self Contained Quicktime Movie from your ProRes timeline. You back that up onto a DVD, a BluRay disc, a harddrive, whatever is large enough to hold the file.
So just like I said in my very first answer, No you CANNOT “back up” your ProRes file onto an HDV tape. You would have to reduce the quality back to HDV in order to print to video.
Walter Biscardi, Jr.
Biscardi Creative Media
HD and SD Production for Broadcast and Independent Productions.STOP STARING AND START GRADING WITH APPLE COLOR Apple Color Training DVD available now!
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[walter biscardi] “If you go to HDV, you lose all the benefits of ProRes. If you go to HDCAM then you maintain all the benefits of ProRes. “
A slight correction here.
the HDCam format is 8 bit 3:1:1 color space at 1440x 1080 – so you would lose a fair amount of data converting to that format.
HDCamSR is a full frame raster @ 10bits so nothing would be lost from a ProRes master.
gary adcock
Studio37
HD & Film Consultation
Post and Production WorkflowsInside look at the IoHD
https://library.creativecow.net/articles/adcock_gary/AJAIOHD.php -
[gary adcock] “the HDCam format is 8 bit 3:1:1 color space at 1440x 1080 – so you would lose a fair amount of data converting to that format.
HDCamSR is a full frame raster @ 10bits so nothing would be lost from a ProRes master.
“that’s exactly what I meant Gary, glad you could put it into words what I was thinking. ha ha!
I didn’t realize you lost so much going to HDCAM but then I forgot that it was a 3:1:1 format. Guess I’ll have to ask the wife to approve an HDCAM SR for the office in the near future……. 🙂
Walter Biscardi, Jr.
Biscardi Creative Media
HD and SD Production for Broadcast and Independent Productions.STOP STARING AND START GRADING WITH APPLE COLOR Apple Color Training DVD available now!
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Yes, almost back to the beginning. I know that I can’t get ProRes onto my hdv tape, but I want to do as little destruction as possible in the process.
I do not want to make another backup on DVD, I already have that, and think that DVDs are probably one of the least reliable backups.
So, I want to weigh the pros/cons of doing an additional backup onto tape, using only fw and hdv.
For that scenario, I guess I should just drop my ProRes TL into an hdv TL, render and then print to hdv video.
And/or….maybe I’ll look for another solution . . .maybe small dedicated hard drive (I’m hearing these can lose info when sitting on the shelf over the years), or some other non-DVD media for a QT ProRes.
I open to cost effective low cost solutions….suggestions?
And just another tidbit I’m curious about, without knowing just how it works underneath, I wonder if the image degradation going from ProRes to hdv after edits, is equal to the what you’d have if you just stayed with hdv all the thru ingest, edit, output?
I appreciate all yuz guys input, there’s always something to learn.
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