I have one of these and have been really impressed. I've used it on a few events, including running a full PA, cameras and web streaming equipment and it barely used any power capacity. (I had backup power standing by which can just be plugged in without interruption, but I've not had to use it).
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I agree. Just put the disc images on your NAS. DVD Decryptor is my preferred program for that. If you need to make them H.264s, Handbrake -- while "preset happy" IMO -- is the easiest/fool proof workflow for making H.264s from discs (I'm not insinuating you're a fool, of course.)
If you still have the original tapes it may be advantageous to digitize/copy them to a better format. DVD-Video is pretty low bitrate, plus the DVD recorder likely doesn't have great filtering for cleaning up crappy analog video.
As others have said, you're undertaking a massive gamble here. This is not an easy task.
You know one variable already, the amount of latency using Zoom. Have you thought about delaying the video to match the audio instead? Not sure what program you're using to feed the projector, but vMix can do it, and I'm sure OBS could as well.
Looking further into this, two ideas for you.
Just my thoughts. I know vMix better than Nimble, so be sure to read up on how to use it. Best of luck with your project!
This https://www.amazon.ca/Uniden-Handheld-Scanner-Black-BC75XLT/dp/B00A1VSO9M/ but I don't see why it would work. It doesn't scan every frequency
Would this be enough? Have used this in the past for interviews
Check out DroidMaker. I found it a fascinating read.
Although they're a bit on the pricier end depending on where you shop, the Audio-Technica BPHS1 headsets are awesome. They're practically the golden standard for semi-pro broadcasters at this point. I've had great experience with them both indoors and out.
There are cheaper headset mics of course, but you'll need adapters to get them to be XLRs. Analog computer headsets would probably work, you'd need 1/8 inch to XLR adapters or cables.
Something like this might work, and it's cheap:
http://www.amazon.com/dp/B002DS4HTM
You'll need an adapter to get it plugged into the mixer though...the advantage to a headset like that (which should have separate connectors for mic and headphones) is that you could probably also feed game audio or program audio (or whatever you wanted) easily to the headphones.