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UK Digital Video (uk.rec.video.digital) For the discussion of all aspects of digital video, including all digital video formats, camera use, editing, post production & all associated equipment, hardware and software. Advertising is prohibited.

Generation loss with DV?



 
 
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  #1  
Old May 3rd 05, 10:07 PM posted to microsoft.public.windowsxp.video,rec.video,rec.video.desktop,uk.rec.video.digital
Griffo Fooxburr
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Posts: 11
Default Generation loss with DV?

Hello all,
I understand that if I copy a miniDV tape from one camcorder to another
directly, I'll get EXACT copy, i.e. without any loss of quality, assuming
there are no hardware errors.
What I want to know is will the same apply if I transfer (capture) DV
footage via fireware onto a hard disk and then put it back via firewire
again onto another tape? Are there some additional things I should pay
attention to, like using the same capturing utility for transferring in both
directions?

  #2  
Old May 3rd 05, 10:23 PM posted to microsoft.public.windowsxp.video,rec.video,rec.video.desktop,uk.rec.video.digital
Ven Hawkins
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Posts: 1
Default Generation loss with DV?

It theory it should be totally loss-less, an exact bit for bit copy.
You have to watch out for dropped frames and occasional imperfections
in your tape media. If a frame is dropped, you can usually hear it
when you play the tape and sometimes you can see it. I find this
usually happens during capture and not export. I use a 10,000 rpm
hard drive to reduce the occurance of dropped frames. Imperfections in
your tape will show up on the screen as flashes of "pixelization",
little rectangles that are pretty obvious when you see them. My
suggestion would be to watch your footage in its entirety after every
transfer. It's tedious but worth it.

Ven Hawkins

  #3  
Old May 3rd 05, 10:24 PM posted to microsoft.public.windowsxp.video,rec.video,rec.video.desktop,uk.rec.video.digital
Martin Heffels
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Posts: 1
Default Generation loss with DV?

On Wed, 4 May 2005 00:07:56 +0200, "Griffo Fooxburr"
wrote:

What I want to know is will the same apply if I transfer (capture) DV
footage via fireware onto a hard disk and then put it back via firewire
again onto another tape?


Yes

Are there some additional things I should pay
attention to, like using the same capturing utility for transferring in both
directions?


No titles or effects.

-martin-

--
"Light travels faster than sound. That is why some people appear bright
until you hear them speak."
  #4  
Old May 3rd 05, 10:26 PM posted to microsoft.public.windowsxp.video,rec.video,rec.video.desktop,uk.rec.video.digital
C.J.Patten
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Posts: 6
Default Generation loss with DV?

LOL! I was just re-reading a thread *I* started a couple months ago on
almost EXACTLY the same topic.

Look for this subject: "DV25: back and forth generation loss?"
It should answer ALL of your questions on the topic.

C.




"Griffo Fooxburr" wrote in message
...
Hello all,
I understand that if I copy a miniDV tape from one camcorder to another
directly, I'll get EXACT copy, i.e. without any loss of quality, assuming
there are no hardware errors.
What I want to know is will the same apply if I transfer (capture) DV
footage via fireware onto a hard disk and then put it back via firewire
again onto another tape? Are there some additional things I should pay
attention to, like using the same capturing utility for transferring in
both
directions?



  #5  
Old May 3rd 05, 10:50 PM posted to microsoft.public.windowsxp.video,rec.video,rec.video.desktop,uk.rec.video.digital
Tony Morgan
external usenet poster
 
Posts: 1,046
Default Generation loss with DV?

In message , Griffo Fooxburr
writes
Hello all,
I understand that if I copy a miniDV tape from one camcorder to another
directly, I'll get EXACT copy, i.e. without any loss of quality, assuming
there are no hardware errors.
What I want to know is will the same apply if I transfer (capture) DV
footage via fireware onto a hard disk and then put it back via firewire
again onto another tape? Are there some additional things I should pay
attention to, like using the same capturing utility for transferring in both
directions?

http://www.camcord.info/archiving
--
Tony Morgan
http://www.camcord.info
  #6  
Old May 3rd 05, 10:58 PM posted to microsoft.public.windowsxp.video,rec.video,rec.video.desktop,uk.rec.video.digital
nap
external usenet poster
 
Posts: 1
Default Generation loss with DV?

Generation Loss..

No kidding.,. Once I was working on a project wiht DV and when I was done I
felt a generation older. Whew. I think it was a Final Cut Project too.

Does that count?


"Griffo Fooxburr" wrote in message
...
Hello all,
I understand that if I copy a miniDV tape from one camcorder to another
directly, I'll get EXACT copy, i.e. without any loss of quality, assuming
there are no hardware errors.
What I want to know is will the same apply if I transfer (capture) DV
footage via fireware onto a hard disk and then put it back via firewire
again onto another tape? Are there some additional things I should pay
attention to, like using the same capturing utility for transferring in
both
directions?



  #7  
Old May 3rd 05, 11:01 PM posted to microsoft.public.windowsxp.video,rec.video,rec.video.desktop,uk.rec.video.digital
C.J.Patten
external usenet poster
 
Posts: 6
Default Generation loss with DV?

nap.
pot.
stir.

LOL!



"nap" wrote in message
...
Generation Loss..

No kidding.,. Once I was working on a project wiht DV and when I was done
I felt a generation older. Whew. I think it was a Final Cut Project too.

Does that count?


"Griffo Fooxburr" wrote in message
...
Hello all,
I understand that if I copy a miniDV tape from one camcorder to another
directly, I'll get EXACT copy, i.e. without any loss of quality, assuming
there are no hardware errors.
What I want to know is will the same apply if I transfer (capture) DV
footage via fireware onto a hard disk and then put it back via firewire
again onto another tape? Are there some additional things I should pay
attention to, like using the same capturing utility for transferring in
both
directions?





  #8  
Old May 4th 05, 08:54 AM posted to microsoft.public.windowsxp.video,rec.video,rec.video.desktop,uk.rec.video.digital
Griffo Fooxburr
external usenet poster
 
Posts: 11
Default Generation loss with DV?

C.J.Patten wrote:
LOL! I was just re-reading a thread *I* started a couple months ago on
almost EXACTLY the same topic.

Look for this subject: "DV25: back and forth generation loss?"
It should answer ALL of your questions on the topic.

C.


Actually I found it on Google groups immediatelly after I posted my
question. The trouble is that my NNTP server keeps only about last 30 days
of messages and your "...back and forth..." thread is dated somewhere
mid-March, hence my posting...

Thanks!

  #9  
Old May 4th 05, 12:58 PM posted to microsoft.public.windowsxp.video,rec.video,rec.video.desktop,uk.rec.video.digital
Tony Morgan
external usenet poster
 
Posts: 1,046
Default Generation loss with DV?

In message , Griffo Fooxburr
writes
Actually I found it on Google groups immediatelly after I posted my
question. The trouble is that my NNTP server keeps only about last 30
days of messages and your "...back and forth..." thread is dated
somewhere mid-March, hence my posting...


In which case you might like to use Google to access newsgroup postings
from years back.
--
Tony Morgan
http://www.camcord.info
  #10  
Old May 4th 05, 03:46 PM posted to microsoft.public.windowsxp.video,rec.video,rec.video.desktop,uk.rec.video.digital
Rehan
external usenet poster
 
Posts: 9
Default Generation loss with DV?

Griffo Fooxburr wrote:
Hello all,
I understand that if I copy a miniDV tape from one camcorder to another
directly, I'll get EXACT copy, i.e. without any loss of quality, assuming
there are no hardware errors.
What I want to know is will the same apply if I transfer (capture) DV
footage via fireware onto a hard disk and then put it back via firewire
again onto another tape? Are there some additional things I should pay
attention to, like using the same capturing utility for transferring in both
directions?


Be warned that although theoretically there should be no generational
loss, in practice there are a few things to look out for:

Windows Movie Maker. If you are editing in WMM then note that rendering
in DV AVI from movie maker results in COMPLETE LOSS of 27th frame of
every clip. If you do a lot of editing with many small clips then this
can be significant.


--
Rehan
MS MVP (Digital Media)
www.rehanfx.org -- get effects & transitions for MM2
 




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