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Media 100 as line digitizer

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Andrew Hulsmeier
Media 100 as line digitizer
on Oct 13, 2009 at 1:35:10 am

Can I use media 100 as a recorder. 2 cameras to a switcher to Media 100 for capture. What are the limits of recording.


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Floh Peters
Re: Media 100 as line digitizer
on Oct 13, 2009 at 5:36:23 pm

Basically your HD space is the limit. We recorded 45-minute shows for several years in Media 100 for editing directly after the finish of the studio recording. But of course you should have a backup…



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Nick Griffin
Re: Media 100 as line digitizer
on Oct 13, 2009 at 6:22:05 pm

Floh-

Wouldn't a level 5 RAID provide that measure of back-up safety?


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Floh Peters
Re: Media 100 as line digitizer
on Oct 13, 2009 at 9:34:43 pm

[Nick Griffin] "Wouldn't a level 5 RAID provide that measure of back-up safety?"

Short answer: No.
Slightly longer answer: NO!!! Not at all!!!
Even longer answer: RAID 5 is not backup at all! Raid 5 is something that protects you from drive failures, in case one of your drives fails. But you have to deal with a situation where a crash of your application, a power failure or even a hit on the Cancel button can delete everything you have acquired. It could happen that you acquire 45 minutes in one piece and when stopping the acquire your system fails to write the lead out. This would mean that the whole 45 minutes would be gone. So you should make sure to have a way to e.g. reacquire (like a tapedeck running in sync to your system).
What we did is that we routed the incoming SDI and TC through a DigiBeta deck, and we acquired "through" the deck, recording to the deck and to Media 100 with the RS422 on the deck set to local. This way we got the TC in Media 100 via RS422, but the system was not able to stop the deck.



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Nick Griffin
Re: Media 100 as line digitizer
on Oct 13, 2009 at 9:56:00 pm

Thanks, Flo. Good answer. I automatically assume back-up means later recovery and your point is immediate failure for which a level 5 RAID would not provide any protection.


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