Re: [Avid-L2] Re: HDCAM tape lifespan...

I think that is true of Sony decks but only after pass 1. When you load a
fresh tape into a Sony Digi or HDCAM deck, there is a ruby cutter that
slices off the tiniest slivers of tape prior to head wrap. Sort of a tape
guide and path insurance. Once that has been done, the machine recognizes
previously sliced tape and doesn't drop the cutter in.

DVW and SRW machines are the Rolls Royce of our profession…


On Thu, Apr 25, 2013 at 2:57 PM, johnrobmoore <bigfish@pacbell.net> wrote:

> **
>
>
> I'd heard over the years sense we got away from analogue recording formats
> and went to recording digital data on the tapes, around the D2 days and
> certainly with digibeta, the tapes actually got better performance after
> use. The theory was the heads passing over the tape actually smoothed out
> the surface of the tape which made for better performance. I would imagine
> this would not be something that you'd ever really see on screen but has
> more to do with the magnetic coercivity of a smoother less bouncy surface
> on the heads. I can't say this is a fact but it makes sense to me. Of
> course damaged tape from a bad transport is another story.
>
> --- In Avid-L2@yahoogroups.com, Tim Selander <selander@...> wrote:
> >
> > Yep, that's the info I'm hoping for, how many times can a tape
> > reasonably be recorded -- though the shelf life info is good to
> > have too!
> >
> > I found a pdf put out by Sony that said HDCAM SR tape is good for
> > an impressive 50 uses with no loss of quality. SR is a completely
> > different formula than 'just' HDCAM... but I wonder if durability
> > is similar.
> >
> > Tim Selander
> > Tokyo, Japan
> >
> > On 4/26/13 1:12 AM, Terence Curren wrote:
> > > I think he is more concerned with number of times over the heads as
> opposed to age of tape.
> > >
> > > --- In Avid-L2@yahoogroups.com, "Tom McDonnell" <ltr54@> wrote:
> > >>
> > >> Not sure how if this is any indicator but I have SONY brand BETA SP
> and Beta
> > >> Oxide tapes over 30 years old and 15 year old SX tapes that play back
> like
> > >> the day I recorded them.
> > >>
> > >> Tom McDonnell
> > >> Cinematographer/Operator
> > >> Weisscam Hi-Speed Tech
> > >> Los Angeles, CA
> > >> New Orleans, LA
> > >> 818-675-1501
> > >>
> > >
> >
>
>
>


[Non-text portions of this message have been removed]



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