Ron Shook
Forum Replies Created
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Noah,
[Noah Kadner] “Well as a simple practical matter of design it’s not going to happen with the stock camera. The deck is DV only- you can’t software update new HD recording heads.”
I, and I doubt Michael, wasn’t suggesting that the tape drive could record HD, but only that it be available as a DV25 backup to HD and DV50 production. This would be particularly valuable when shooting DV50. Since we know that the HVX can downconvert to the component outputs while recording to P2 or hard disk, it’s only (in our minds) a short step to encoding to DV25 and turning on the tape drive.
Many folks are now shooting HD and delivering on SD to take advantage of the jump in SD quality, and a DV25 backup of HD production would not only serve that purpose but become an automatic off line asset, a huge selling point in my estimation.
Ron Shook
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Michael,
[michael] “Does anyone know if the HVX200 can record HD to P2
whilst also recording dvcam or other to tape, just to have
a tape backup…??”I asked this a few weeks ago. Jan says “no.” It would be nice and perhaps could be something for a future software upgrade.
Ron Shook
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Blub,
[Blub] “I have read this several times, why do some of the digital cameras I have used (Sony) have IRE in their menus and offer 0 or 7.5. When I test them the 0 IRE does show blacker blacks. I have no problem with the idea that digital has or can obviate IRE, but why is it still in the cameras?”
They need a 7.5 IRE setting solely for when they might be used in an analog switched multi-cam situation where they are mixed with analog camera heads. Otherwise the 7.5 IRE setting is useless and should never be used.
Ron Shook
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Jan,
[Jan Crittenden Livingston] “They lack the necessary LSI that understands and directs traffic in MXF.”
A couple of dumb questions for ya:
An “LSI” is some sort of custom circuit or chip?
Is it that these PCMCIA hard disk drives are impossible for the HVX to record to if properly preformatted, or that without this LSI it is possible to record linearly, but only in a write once fashion, not allowing you to, for instance, nuke the last take or other non-linear features?
Thanks again,
Ron Shook
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Jan,
[Jan Crittenden Livingston] “All good things come with time.”
I wonder whether that time has anything to do with my time? (g)
Thanks,
Ron
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Donatello,
I probably owe you an apology after thinking about this for awhile. That 67MB/s figure is probably some sort of buss speed as I can’t believe that this tiny 4k rotational speed drive is that capable. I wonder how capable it actually is in real life?
Ron Shook
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Donatello,
[donatello] ” thru-put doesn’t make it …”
What? “66.7MB/s” is over 5 times the necessary thu-put of 100Mb/s. The P2 cards are only a bit faster at 80MB/s. You’ve mixed up bytes and bits.
Ron Shook
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Barry,
[Barry Green] “For data tape, any kind of data tape would work, such as DLT, LTO, SAIT, etc. Anything that’s used for backing up computer data would work, losslessly. Data tape drives are a lot less expensive, maybe $1500 to $5,000 or so.”
I just happened to be researching that today and found in my initial search that LTO2 or LTO3 is by a good margin the most cost effective per speed and capacity, and far as I could find that Dell was the best source for these. They have a $1700 “PowerVault 110T LTO-2-L” drive with 200GB native capacity, $50/tape, and 86 GB/hr. speed, so it would take a little more than real time to backup DVCProHD at 25 cents/GB. They also have an LTO3 drive at $3700, 400GB native capacity, $110/tape, and much faster at 288GB/hr., so backup would go at almost 3x real-time for HD at slightly increased tape cost.
Something to smoke in your pipes.
Ron Shook
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Jan,
[Jan Crittenden Livingston] “you could have taken a few minutes to read it. Take a look at page 125.”
It’s unlikely that Michael is quite that fast a reader. (g) To get to p. 125 in a tech manual would take me a few hours if not more.
Ron Shook
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Peter,
[Peter Wright] “Sound Forge only deals with a single file at a time – this is a job for Vegas.”
Thanks. Now I know.
Ron