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Hi Richard 

The tape width is key as multis are 1/2" and 1". Is it also 467?

Sometimes you can find out about who recorded it and what machine was available to them either via hire or studio. 

In my experience the most common 2 track reels have been pro digi such as x86 etc, trail and error is the id method basically. 

Baking and clean is essential if ampex stock.

Alex.

Sent from my iPhone

> On 16 Oct 2016, at 01:08, Richard L. Hess <[log in to unmask]> wrote:
> 
> Sorry I was vague. This is a two channel recording (as far as I know) and is on 1/4-inch tape. I received an offlist response that indicated this was necessary to help some people help me.
> 
> Sorry for the intrusion.
> 
> 
> 
> 
>> On 10/15/2016 19:35, Richard L. Hess wrote:
>> I ahould have added:
>> 
>> It was made by/for Prestige Productions in Birmingham. My contact said
>> that they originally thought a Betamax digital recorder (PCM/F1, I think
>> he means) was going to be used then they showed up with this...but he
>> doesn't know what it was. He thought Sony.
>> 
>> 
>> 
>>> On 10/15/2016 19:06, Richard L. Hess wrote:
>>> I was asked to turn a DASH tape into files. The tape owner was fairly
>>> certain it was made on a SONY machine.
>>> 
>>> It would not play on my 3402 which still plays other tapes.
>>> 
>>> I baked the tape prior to playback which has been necessary for at least
>>> a few years and is being done in Hollywood on multi-track DASH.
>>> 
>>> I believe the tape is tails out, but I could not hear anything on the
>>> aux tracks. When played backwards, I can hear backwards organ sounds (it
>>> is a theatre pipe organ recording) on one channel only.
>>> 
>>> It appears to be about 15 in/s.
>>> 
>>> I have posted on my website after much research that there are five
>>> variations of the Mitsubishi Pro-Digi format.
>>> 
>>> 1. The original X-80 machine had a 50 kHz sample rate. It’s tapes will
>>> play back properly on a 50 ks/s X-80, or 4% slow on a 48 ks/s X-80 or an
>>> X-86C.
>>> 
>>> 2. Later X-80 machines had a 48 kHz sample rate. It’s tapes will play
>>> back properly on a 48 ks/s X-80 or an X-86C. Presumably they will also
>>> play 4% fast on an original, 50 kHz X-80.
>>> 
>>> 3. The switchable 44.1/48 ks/s X-86 tapes will play on an X-86, X-86C,
>>> and X-86HS.
>>> 
>>> 4. The high-resolution (88.2/96 ks/s) X-86HS tapes will only play on
>>> that machine.
>>> 
>>> 5. The “radio-station” 7.5 in/s tapes made on the X-86LT will only play
>>> on that machine.
>>> 
>>> As far as I know there is only one Sony format.
>>> 
>>> So what do you think this tape might be?
>>> 
>>> Thanks!
>>> 
>>> Cheers,
>>> 
>>> Richard
> -- 
> Richard L. Hess                   email: [log in to unmask]
> Aurora, Ontario, Canada                             647 479 2800
> http://www.richardhess.com/tape/contact.htm
> Quality tape transfers -- even from hard-to-play tapes.