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 Post subject: Re: Manufacturing Dates in Technidisc Mint Marks
PostPosted: 16 May 2020, 06:21 
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blam1 wrote:
I've come across a variant where the DADC USA mint markings are carried over to Austria:
Stripes - Widescreen
USA: LDVS-002137-A-A2
Austria: A3DEELDVS2137 62


Exact!

I suppose sometimes DADC Austria would use as a 2nd source for NTSC titles.

One good example is Philadelphia (1993) [52616] carrying LDVS-002160/LDVS002160 for both masters.

Julien
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 Post subject: Re: Manufacturing Dates in Technidisc Mint Marks
PostPosted: 16 May 2020, 09:56 
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And for Pioneer Japan... we won't get to know what happens when you go beyond side #26 (== Z):

Armored Trooper VOTOMS: Perfect Collection (1983) [ATX-1]

ATX-1-A01-P   27H91320
ATX-1-B02-P   27H91397
(...)
ATX-1-Y02-P   27H91170
ATX-1-Z01-P   27H91180


Julien
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 Post subject: Re: Manufacturing Dates in Technidisc Mint Marks
PostPosted: 16 May 2020, 10:06 
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Technidisc was the company that pressed laserdiscs for Indonesian company Soraya Intercine Films ( which is kind of an odd choice because it would make more sense to have them produced in Japan
due to its geographical proximity ).

One of the discs I have has the following mintmarks:

1119-054-008A 06/09/94E
1119-054-007A 06/07/94L

Which clearly show that the disc was mastered in 1994.

I never understood those DADC Austria mintmarks but now they make more sense thanks to this thread.
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 Post subject: Re: Manufacturing Dates in Technidisc Mint Marks
PostPosted: 17 May 2020, 16:22 
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Mitsubishi:

SYMM01234

A90A00704 = Side 1, January 1999
B70E08890 = Side 2, May 1997

After October (J), it rolls over to 1A and 1B for November and December?
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 Post subject: Re: Manufacturing Dates in Technidisc Mint Marks
PostPosted: 20 May 2020, 06:22 
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admin wrote:
The Pioneer improved list found a few typos and mistakes that I fixed along the way.


I was a little too strict on the Pioneer marking filter.

Relaxed some conditions for partial mint marks and the total jumped from 3,304 to 5,096.

Julien
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 Post subject: Re: Manufacturing Dates in Technidisc Mint Marks
PostPosted: 25 May 2020, 04:45 
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admin wrote:
Relaxed some conditions for partial mint marks and the total jumped from 3,304 to 5,096.


Made another round of improvements to cope with variations in the Pioneer USA mint markings.
And while I was having fun coding array parsing, I added BOLD for continuous master serials and BOLD RED when I detect the longest continuous sequence.

https://www.lddb.com/mint/pioneer-usa

As of today:

Total = 5891
The longest continuous sequence is 21 starting from 58-330.


Improved again:

Total = 6382
The longest continuous sequence is 28 starting from 59-243.


Made the same modifications to SONY DADC:

https://www.lddb.com/mint/dadc-austria

Total = 1246
The longest continuous sequence is 10 starting from 001198.

Help us fill the gaps :-)

Julien
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 Post subject: Re: Manufacturing Dates in Technidisc Mint Marks
PostPosted: 25 May 2020, 18:25 
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Decided to check my Technidiscs:
Canyon Dreams: Tangerine Dream (1987) [ID5171]:024-052-413F 5K21Z# also lacking the technidisc name and logo as well as A/B side indication, instead saying WRONG SIDE

Hitchhiker's Guide To The Galaxy, The (1981) [5799-80]: 433-013-234P 01/13/94K 11/16/93P

King Tut: The Face of Tutankhamun (1992) [LVD9401]: #1028-034-042A 03/21/94K

Nadia #1: Secret of the Blue Water (1989) [LVD9350]: #1028-034-054A 04/10/94L

Glenco Science & Technology: #3 - Earth & Space [G82617.02]: #802-032-005B 04/15/94E

Glenco Science & Technology: #4 - Plants & Simple Organisms [G82618.02]: #802-032-007B 04/09/94D

Glenco Science & Technology: #5 - Animals [G82619.02]: #802-032-009B 04/09/94G

Glenco Science & Technology: #6 - Ecology [G82614.02]: 802-032-012A 03192H different style of markings on this one.
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 Post subject: Re: Manufacturing Dates in Technidisc Mint Marks
PostPosted: 25 May 2020, 22:08 
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admin wrote:
And for Pioneer Japan... we won't get to know what happens when you go beyond side #26 (== Z):

Armored Trooper VOTOMS: Perfect Collection (1983) [ATX-1]

ATX-1-A01-P   27H91320
ATX-1-B02-P   27H91397
(...)
ATX-1-Y02-P   27H91170
ATX-1-Z01-P   27H91180


Julien


Pioneer USA never went above Side "F". Titles which required more than 6 sides would have the internal reference number advance. For example, "Gone with the Wind (CAV)" is:
51-989A1-07
51-989B1-01
51-989C1-06
51-989D1-05
51-989E1-01
51-989F1-02
51-990A1-04
51-990B1-01
51-990C1-02
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 Post subject: Re: Manufacturing Dates in Technidisc Mint Marks
PostPosted: 28 May 2020, 08:07 
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We could maybe extend the same reverse engineering to PRINCO:

Few examples:

KA7984P/KB7984P
A36955D/B36955D
A368657/B368658
A2637-0Q
A305848/B3058B5
A292836/B292836
A31286P/B31286Q
KA4067F/KB406HG
A29864F/B29864F
KA22132/KB22131


Except for KB406HG (typo in Amelia, Volume 1 (1993) [AMI-001]?), it looks like was have a master serial ID embedded:

KA22132
A2637-0Q
A36955D
A29864F
KA7984P
A379888
KA1661Q
KA1040NO
A38098P
A2723-NF
A3967BP
A2704-NL
KA0079-D6
A292936

Would that make sense?

Julien
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 Post subject: Re: Manufacturing Dates in Technidisc Mint Marks
PostPosted: 28 May 2020, 15:25 
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blam1 wrote:
Pioneer USA never went above Side "F". Titles which required more than 6 sides would have the internal reference number advance. For example, "Gone with the Wind (CAV)" is:
51-989A1-07
51-989B1-01
51-989C1-06
51-989D1-05
51-989E1-01
51-989F1-02
51-990A1-04
51-990B1-01
51-990C1-02

Hexadecimal uses digits 0–9 and characters ‘A’ through ‘F’. Although it does not look like Pioneer USA were using hexadecimal logic, perhaps they were limited to the hexadecimal character set in order to comply with some internal database.
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 Post subject: Re: Manufacturing Dates in Technidisc Mint Marks
PostPosted: 29 May 2020, 18:31 
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To help locate titles that still lack the Mint Markings information, I slightly modified the Collection list colors for LDs (that are not graded 9 or 10 -- don't want you to open a sealed disc just to check the mint marks!):

=> https://www.lddb.com/collection.php?action=list&format=ld

If you see some red-ish lines... there's some updates needed :-)

Julien
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 Post subject: Re: Manufacturing Dates in Technidisc Mint Marks
PostPosted: 31 May 2020, 19:09 
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admin wrote:
We could maybe extend the same reverse engineering to PRINCO.
Would that make sense?


Well, you can take a look and see what you think!

PRINCO => https://www.lddb.com/mint/princo

And while I was working on this:

3M/IMATION => https://www.lddb.com/mint/imation

Julien
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