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edwin240170
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Post subject: Re: Manufacturing Dates in Mint Marks Posted: 24 Feb 2021, 14:20 |
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Joined: 19 May 2006, 20:41 Posts: 545 Location: Belgium Has thanked: 12 times Been thanked: 43 times
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Continued my investigation on Kuraray All the examples below have the same A0X-K and B0X-K reference in LDDB and my copies Deep Blue Sea (1999) [17242]14/12/1999 17242-A02-K 1S570029 LDDB 17242-B04-K 1T570029 LDDB 17242-A02-K 1N530275 my copy 17242-B04-K 154D0254 my copy Notting Hill (1999) [ID9041PG]21/12/1999 ID9041PG-A01-K 1Q460849 LDDB ID9041PG-B01-K 147B2116 LDDB ID9041PG-C01-K 954A0944 LDDB DDENG-5-B71-K 1W461698 LDDB ID9041PG-A01-K 1Q460920 my copy ID9041PG-B01-K 147B2276 my copy ID9041PG-C01-K 954A0837 my copy DDENG-5-B71-K 1W461047 my copy Practical Magic (1998) [16322]16/3/1999 16322-A05-K 2L131696 LDDB 16322-B03-K 214B1810 LDDB 16322-A05-K 2L130307 my copy 16322-B03-K 214B0421 my copy I dont think they used a year / day code, just a unique first 4 combination and a running number in the last 4 digits .. tbc
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lonerangerface
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Post subject: Re: Manufacturing Dates in Mint Marks Posted: 24 Feb 2021, 19:23 |
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Joined: 23 Dec 2019, 20:45 Posts: 88 Location: United States Has thanked: 0 time Been thanked: 11 times
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Even though the "Walt Disney Christmas" LD was released round 1982, my copy was manufactured September 14, 1995. 95-991A2-01 I9140304 07-400B9-71 I9135758 Possibly it may have been a re-release with the 1984 FBI Warnings and "Walt Disney Home Video" logo instead of the early warnings and "Walt Disney Home Entertainment" logo. "More Sport Goofy" 1983 LD has this: 168AS-A01 A5301 1A111285 KAME-2-A17 7D111737 The above one can't seem to give me the manufacturing date, but the bottom says it was July 11, 1988. "The New Adventures of Winnie the Pooh, Vol. 1" (1989) has these mint marks: 50-610A1-03 62F90588 50-610B1-04 63F90914 It tells me that it was manufactured September 1989, but it gives me September 62, 1989 on side 1 and September 63, 1989 on side 2. Those dates don't exist, but the volume was made in 1989. "Disney's Sing Along Songs: Collection of All-Time Favorites" gives me these: 55-800A1-001 C0230082 55-800B1-001 C0230170 55-800C1-002 D0261103 07-400B1-058 D0190750 The first two sides say October 23, 1996. The video was really made in 1997.
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cplusplus
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Post subject: Re: Manufacturing Dates in Mint Marks Posted: 25 Feb 2021, 18:42 |
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Joined: 13 Aug 2018, 03:18 Posts: 1520 Has thanked: 449 times Been thanked: 588 times
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lonerangerface wrote: "The New Adventures of Winnie the Pooh, Vol. 1" (1989) has these mint marks: 50-610A1-03 62F90588 50-610B1-04 63F90914 It tells me that it was manufactured September 1989, but it gives me September 62, 1989 on side 1 and September 63, 1989 on side 2. 6 is probably supposed to be 0. lonerangerface wrote: "Disney's Sing Along Songs: Collection of All-Time Favorites" gives me these: 55-800A1-001 C0230082 55-800B1-001 C0230170 55-800C1-002 D0261103 07-400B1-058 D0190750 The first two sides say October 23, 1996. The video was really made in 1997. This could be a manufacturing error since C is close to D.
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lonerangerface
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Post subject: Re: Manufacturing Dates in Mint Marks Posted: 07 Jul 2021, 19:26 |
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Joined: 23 Dec 2019, 20:45 Posts: 88 Location: United States Has thanked: 0 time Been thanked: 11 times
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My copy of " An American Tail (CAV)" was manufactured December 21, 1990: 50-162A1-14 21I20183 50-162B1-7 21I20184 50-162C1-12 21I20210 The blank side was manufactured January 21, 1991: 07-400B2-25 21A11619 And although Mickey Mouse and Donald Duck Cartoon Collection: Volume 1 was released in 1982, my copy was manufactured on December 3, 1989: 95-100A1-03 03G20136 95-100B1-04 03G20412 Volume 3 was released in 1983, but my copy was manufactured on December 4, 1989, and the blank side the next day: 95-484A1-04 04G20183 07-400B1-37 05G25779
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admin
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Post subject: Re: Manufacturing Dates in Mint Marks Posted: 23 Sep 2021, 00:50 |
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Joined: 07 Aug 2002, 23:37 Posts: 4551 Location: Tokyo Has thanked: 295 times Been thanked: 1147 times
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lonerangerface wrote: And although Mickey Mouse and Donald Duck Cartoon Collection: Volume 1 was released in 1982, my copy was manufactured on December 3, 1989. Volume 3 was released in 1983, but my copy was manufactured on December 4, 1989, and the blank side the next day. I think we only have a high level of confidence for mint marks starting from year 1987, anything before might be wrong and the manufacturing encoding used in the same way for 2 different years. Julien
_________________ HARDWARE DATABASE HLD-X0/9 LD-S9 OPPO 105/205 SL-1200G LDD-1 MSC-4000 R2144 PONTUS II C45 MC257
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lonerangerface
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Post subject: Re: Manufacturing Dates in Mint Marks Posted: 04 Oct 2021, 20:56 |
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Joined: 23 Dec 2019, 20:45 Posts: 88 Location: United States Has thanked: 0 time Been thanked: 11 times
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A copy of " Ben and Me/Bongo" I just got has an earlier mint mark. The marks on the site right now says the guy's copy was manufactured October 8, 1992 Mine says side 1 was manufactured May 30, 1989: 97-456A1-06 30F51313And side 2 May 23, 1989 97-456B1-01 23F50045
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admin
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Post subject: Re: Manufacturing Dates in Mint Marks Posted: 05 Oct 2021, 02:01 |
Site Admin |
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Joined: 07 Aug 2002, 23:37 Posts: 4551 Location: Tokyo Has thanked: 295 times Been thanked: 1147 times
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lonerangerface wrote: A copy of " Ben and Me/Bongo" I just got has an earlier mint mark. The marks on the site right now says the guy's copy was manufactured October 8, 1992 Mine says side 1 was manufactured May 30, 1989: 97-456A1-06 30F51313And side 2 May 23, 1989 97-456B1-01 23F50045Hello! I saw your update but, since the mint marks were just another iteration of Pioneer USA, I kept the one already listed. However yours is interesting in that is shows a master of 6th generation (97-456A1- 06) with an earlier pressing date? That's a little strange. Or Someone just added the stampers to existing master marks without checking for consistency? => Asking the original submitter to double-check. Or Our understanding of master/pressing date is flawed... Julien
_________________ HARDWARE DATABASE HLD-X0/9 LD-S9 OPPO 105/205 SL-1200G LDD-1 MSC-4000 R2144 PONTUS II C45 MC257
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cplusplus
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Post subject: Re: Manufacturing Dates in Mint Marks Posted: 05 Oct 2021, 02:37 |
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Joined: 13 Aug 2018, 03:18 Posts: 1520 Has thanked: 449 times Been thanked: 588 times
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admin wrote: However yours is interesting in that is shows a master of 6th generation (97-456A1-06) with an earlier pressing date? That's a little strange. I think 06 is stamper 6. Mastering was the most expensive and time consuming part of manufacturing, so barring any issues there should be only one. From there, they can make a ton of stampers and replicate hundreds of thousands of sides. Some pure speculation as to why there could be 06 from 1989: a few stampers between 01 and 06 failed QA (Sony didn't have to worry about this.). Technidisc and 3M stored mothers/stampers (3M charged for this, not sure about Technidisc) so a repressing would not require remastering. I assume Pioneer did as well, so 01 could be available for a repressing. Not sure why they would store a "used" stamper though other than it being "tried and true". Above might be a stretch, but I believe it is plausible. Of course we could also still be missing something here in regards to numbering. lonerangerface are you sure that is a 01 and not a 0 7? That would make more sense. Sometimes these serials are stamped quite poorly.
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lonerangerface
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Post subject: Re: Manufacturing Dates in Mint Marks Posted: 05 Oct 2021, 03:53 |
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Joined: 23 Dec 2019, 20:45 Posts: 88 Location: United States Has thanked: 0 time Been thanked: 11 times
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cplusplus wrote: lonerangerface are you sure that is a 01 and not a 07? An 01 on side 2, yes.
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cplusplus
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Post subject: Re: Manufacturing Dates in Mint Marks Posted: 11 Oct 2021, 15:58 |
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Joined: 13 Aug 2018, 03:18 Posts: 1520 Has thanked: 449 times Been thanked: 588 times
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This is what a second master looks like: Video Demo Disc (1996) [09-177]An interesting point is the serials are clearly the result of stamping, but the reference and master identifiers look like they come from an earlier stage of manufacturing since they are always very clean. Since blank sides have very high trailing numbers, I'm quite sure at this point that this number is indeed stamper.
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