[QuadList] IVC Recovery

Tue May 20 19:05:46 CDT 2014

Steve,

The VTR was an 825. A very clean machine. I won't go into what signal processor/workflow that was used but we generally get very good results from the 825 model. Mac and FCP were the digitization tools.

This tape came from an institution in the Northern U.S. It may have been second generation, hence the phenomena you saw at the bottom. This performer had the tape sent to us. It was his only video file of his guitar/singing days as a snowblower accident shorty thereafter severed some of his fingers. He was very happy to now be able to show this to his family. 

David

On May 16, 2014, at 2:13 PM, Steve White wrote:

> 
> Impressive image.  How'd you actually capture it?
> 
> Looking at the bottom of the screen, it appears this may not even be a first generation tape.  I'm actually a bit surprised to see what appear to be consecutive tracking errors along the bottom.  Can you tell us what generation this might be; if any TBC was used; and so on ...
> 
> 
> On 5/16/14, 5:05 PM, David Crosthwait wrote:
>> 
>> 
>> Yes, the IVC has it's advantages especially in color reproduction. We've done a lot of 1" type A and 1" IVC over the last few years and IVC jobs are always more rewarding. Here's an image from an IVC tape:
>> 
>> <Mail Attachment.jpeg>
>> 
>> Best Regards,
>> 
>> David Crosthwait
>> DC Video
>> Preservation Level Videotape Transfers and More!
>> 
>> Offices located at:
>> 3071 North Lima St.
>> Burbank, CA. 91504
>> 818-563-1073
>> 818-563-1177 (fax)
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>> 
>> david at dcvideo.com
>> http://dcvideo.com/
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>> 
>> 
>> 
>> On May 16, 2014, at 12:34 PM, Steve White wrote:
>> 
>>> 
>>> IVC was the far superior machine ... because it was a totally different format.
>>> 
>>> You'll notice the Ampex used a moving pinch roller path with resulting omega wrap around the drum, while the IVC used a fixed path and alpha wrap.
>>> 
>>> 
>>> On 5/16/14, 3:29 PM, COURYHOUSE at aol.com wrote:
>>>> 
>>>> 
>>>> ok! then ivc is  not   type  A
>>>> it is its own   format  huh?
>>>> (In at case I hope  it was really  done on somethin else than an IVC!)
>>>> Ed#
>>>>  
>>>>  
>>>> In a message dated 5/16/2014 12:25:34 P.M. Mountain Standard Time, dave at zfx.com writes:
>>>> 
>>>> 
>>>> 
>>>> Any tape made on an IVC 1" machine will definitely not play on an Ampex 5100...
>>>> completely different format, head drum size, #heads, tape speed, etc etc etc.
>>>> 
>>>> 
>>>> On Fri, May 16, 2014 at 3:20 PM, <COURYHOUSE at aol.com> wrote:
>>>> 
>>>> 
>>>> Don  -  Well if  we never getting it  working that is ok too as  we have an  Ampex camera that is a nice  match for it...  the  TelePrompTer   1 inch  tape   was  supposedly done    on a IVC  so we  will try that.
>>>> If it  works that is  great as we  have no budget for outside services   to  convert it! So  fingers are  crossed!
>>>> Ed#
>>>>  
>>>>  
>>>> In a message dated 5/16/2014 11:41:05 A.M. Mountain Standard Time, dwnorwood at digitrakcom.com writes:
>>>> 
>>>> 
>>>> 
>>>> I agree with many of the comments on this thread,  is, we're talking about a format developed in the mid 60's, and a lot has changed since then!
>>>>  
>>>> Don Norwood
>>>> 
>>>> _
>>>> 
>>>> 
>> We regularly do type A transfers. We have VR-7800, VPR-7900 and VPR-1's in their original A format.
>> 
>> There never is a lack of surprises with the A format and pre-A format recordings. 
>> 
>> One A format issue is the deterioration of the tape stock. Other problem issues usually point to the lack of basic good engineering standards when the recording was made i.e. the operator did not know what he/she was doing.
>> 
>> According to Jim Wheeler, the first use of the AST was the 7800 or 7900 machine although it may have been a prototype only.
>> 
>> 
>> Best Regards,
>> 
>> David Crosthwait
>> DC Video
>> Transferring NTSC, PAL & SECAM quad and helical source tapes!
>> 
>> david at dcvideo.com
>> www.dcvideo.com
>> 
>> Follow DC Video on Facebook: https://www.facebook.com/dcvideo
>> Follow DC Video on YouTube: http://www.youtube.com/user/dcvideoonline
>> 
>> 
>> 
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