[vcf-midatlantic] Laserdisk transfer to digital?

Dave McGuire mcguire at neurotica.com
Tue Jun 22 21:50:03 UTC 2021


  That sounds most seriously hard-core.

                -Dave

On June 22, 2021 5:48:24 PM Jonathan Gevaryahu via vcf-midatlantic <vcf-midatlantic at lists.vcfed.org> wrote:
> The Domesday Duplicator technology is pretty much brand new, and
> captures the raw RF pickup from the laserdisc head directly. Speaking to
> preservation groups, the quality-of-preservation bar for these sort of
> laserdisc captures is much higher than it was even 10 years ago.
>
> The raw capture from a Domesday Duplicator also is an exact copy of the
> disc as read including every frame and vblank field, so if future
> improvements are made on the decoding software, this can be re-run
> against the captured disc image to improve the resulting quality. A
> done-once format conversion from a laserdisc player to a capture device
> (even with TBC applied by said device) doesn't allow reprocessing later
> without re-imaging the disc once again.
>
> Anything which involves format conversion/re-encoding rather than raw
> capture will end up degrading the final result. Things like TBC can be
> done in software, in post.
>
> On 6/21/2021 3:50 PM, Dave McGuire via vcf-midatlantic wrote:
>> Frequently this is not the case, though, and it's not the case here.  Matt is a professional video archivist; he wrote the book on this.
>>
>>             -Dave
>>
>> On June 21, 2021 3:45:45 PM Sentrytv via vcf-midatlantic <vcf-midatlantic at lists.vcfed.org> wrote:
>>> ----------
>>> Re: [vcf-midatlantic] Laserdisk transfer to digital?
>>> From: Sentrytv sentrytv at yahoo.com
>>> Date: Jun 21, 3:45 PM
>>> To: vcf-midatlantic vcf-midatlantic at lists.vcfed.org
>>>
>>> As usual, there is a complicated answer and way to do things
>>> and
>>> there is a simple answer and way to do things.
>>>
>>> Somewhere in between is the correct way to do this.
>>>
>>> JM2C
>>>
>>> Sent from:
>>> My extremely complicated, hand held electronic device.
>>>
>>>> On Jun 21, 2021, at 1:03 PM, Alexander Jacocks via vcf-midatlantic <vcf-midatlantic at lists.vcfed.org> wrote:
>>>>
>>>> Since Matt has offered, and he has the expertise, I think that we should
>>>> have him do it.
>>>>
>>>> If you want, at the Baltimore workshop, bring the LDs and, and I will bring
>>>> them to Matt, in Pittsburgh.
>>>>
>>>> - Alex
>>>>
>>>>> On Sun, Jun 20, 2021 at 4:30 PM Jeffrey Brace via vcf-midatlantic <
>>>>> vcf-midatlantic at lists.vcfed.org> wrote:
>>>>>
>>>>> On Sun, Jun 20, 2021 at 4:23 PM Jeff Salzman via vcf-midatlantic <
>>>>> vcf-midatlantic at lists.vcfed.org> wrote:
>>>>>
>>>>>> I have a laserdisc player, time base corrector, and video capture card.
>>>>> How
>>>>>> soon does this need done?
>>>>> There is no rush for this, but I would like someone to work on it steadily
>>>>> so that it doesn't get forgotten.
>>>>> A player was donated, but don't know if it works or if it is better or
>>>>> worse than your player. I will leave that up to you.
>>>>> Alex Jaccocks has offered to do this, but maybe both of you can figure out
>>>>> between you two who wants to do it or collaborate.
>>>>>
>>>>>
>>>>>> Jeff Salzman
>>>>>>
>>>>>> On Sun, Jun 20, 2021, 3:23 PM Dean Notarnicola via vcf-midatlantic <
>>>>>> vcf-midatlantic at lists.vcfed.org> wrote:
>>>>>>
>>>>>>> So called “Video Game Enhancers” are simple time-base correctors and
>>>>> will
>>>>>>> remove Macrovision.
>>>>>>>
>>>>>>> On Sun, Jun 20, 2021 at 3:07 PM Wil Birkmaier via vcf-midatlantic <
>>>>>>> vcf-midatlantic at lists.vcfed.org> wrote:
>>>>>>>
>>>>>>>> Laserdisc has a few different formats: all analogue, analogue video
>>>>>> with
>>>>>>>> mono analogue audio and digital audio, or analogue video with all
>>>>>> digital
>>>>>>>> audio.
>>>>>>>>
>>>>>>>> They key to a good capture these days is to get the best composite
>>>>>> video
>>>>>>>> converter you can find as the video is stored like a vinyl record, as
>>>>>> an
>>>>>>>> analogue composite video stream. So yes using the svideo on some of
>>>>> the
>>>>>>>> newer players, the conversion of composite to svideo is still not the
>>>>>>> best.
>>>>>>>> I need to find a link to a decent converter to 720p I have been using
>>>>>>> with
>>>>>>>> vhs and am happy with.
>>>>>>>>
>>>>>>>> On Jun 20, 2021 14:45, Jeffrey Brace via vcf-midatlantic <
>>>>>>>> vcf-midatlantic at lists.vcfed.org> wrote:
>>>>>>>>
>>>>>>>> Does anyone know if it is possible to transfer laserdisks to a modern
>>>>>>>> digital format? There are 16 laserdisks recently donated that have C
>>>>>>>> programming training from 1984, which was part of a UNIX and C
>>>>>>>> training program. The reason for the transfer is that we don't know
>>>>> how
>>>>>>>> rare these disks are nor how long laserdisk will last.
>>>>>>>>
>>>>>>>> There are 16 laserdisks as well as supplemental floppy disks and some
>>>>>>>> paper
>>>>>>>> manuals.
>>>>>>>>
>>>>>>>>
>>>>>>>> =========================================
>>>>>>>> Jeff Brace
>>>>>>>> Vice President & Board Member
>>>>>>>> Vintage Computer Festival East Show-runner
>>>>>>>> Vintage Computer Federation is a 501c3 charity
>>>>>>>> http://www.vcfed.org/
>>>>>>>> jeffrey at vcfed.org
>>
>> --
>> Dave McGuire, AK4HZ
>> New Kensington, PA
>
> --
> Jonathan Gevaryahu
> jgevaryahu at gmail.com
> jgevaryahu at hotmail.com


--
Dave McGuire, AK4HZ
New Kensington, PA




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