LaserDisc

LaserDisc (LD) was the first commercially available optical disc storage medium – the 12 inch (30 cm, and in size comparable to the classic vinyl music LP record) disc diameter size by far the most common one – and was primarily employed as a motion picture video format for home viewing. The format was introduced in 1978.
Laserdisc was a major leap forward in picture and sound quality compared to its contemporary rivals, VHS and Betamax, gaining a modest following in America. In Europe however, it remained largely an obscure format, relegated to the niche market of s. The most success it had was in Japan and Hong Kong, where the format was only discontinued well after the 1996 introduction of the DVD.
Star Trek was one of the earliest TV shows published on this format as well as one of the last.
, the owner of the format, terminated production of Star Trek on LaserDisc for the US in October 1999. The final Star Trek LaserDiscs in Japan were released in 2001.
== Release chronology ==
1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001
Date 	Country 	Product released
 	 	
Unknown 	US 	
 	 	
Unknown 	UK 	
 	 	
Unknown 	US 	;
 	 	
1 October 	US 	Disc 1 of 42 for
Unknown 	UK 	
 	 	
April 	US 	Discs 2-6 of 42 for
July 	US 	Discs 7-11 of 42 for
7 July 	Japan 	; ;
December 	UK 	
Unknown 	US 	
 	 	
January 	US 	Discs 12-16 of 42 for
8 May 	US 	Discs 17-21 of 42 for
11 October 	US 	Discs 22-26 of 42 for
Unknown 	US 	Disc 27 of 42 for ;
 	 	
10 November 	US 	Discs 28-32 of 42 for
18 December 	US 	Discs 33-34 of 42 for
 	 	
25 January 	Japan 	
22 December 	US 	Disc 35 of 42 for
 	 	
16 January 	US 	Disc 36 of 42 for
20 April 	US 	Disc 37 of 42 for
27 May 	US 	Disc 38 of 42 for
10 June 	US 	Discs 39-41 of 42 for
25 July 	Japan 	– 2nd Edition
Unknown 	US 	
 	 	
20 March 	US 	
25 April 	Japan 	
 	 	
25 March 	Japan 	– 2nd Edition; – 2nd Edition; – 2nd Edition;
19 September	US 	Star Trek: The Movies - 25th Anniversary Collection; ; ; ; ;
11 October 	US 	Disc 42 of 42 for ; Discs 1 & 2 of 90 for
Unknown 	France 	;
Unknown 	GermanyNetherlands 	
 	 	
1 April 	US 	
4 April 	US 	Discs 3 & 4 of 90 for
25 June 	US 	
13 July 	US 	Discs 5-7 of 90 for
16 July 	US 	
26 August 	US 	Discs 8 & 9 of 90 for
10 November 	Japan 	Star Trek - Log 1
25 November 	US 	Discs 10 & 11 of 90 for
Unknown 	GermanyItaly 	
Unknown 	Netherlands 	
 	 	
10 February 	Japan 	Star Trek: The Complete Collection; ; – 2nd Edition;
25 March 	Japan 	Star Trek - Log 2
19 May 	US 	Disc 13 of 90 for
26 May 	US 	Disc 12 of 90 for
25 August 	US 	Discs 14 & 15 of 90 for
18 October 	US 	Discs 16 & 17 of 90 for
12 December 	Japan 	Star Trek - Log 3
 	 	
10 March 	Japan 	; ; ; ; ; – 2nd Edition and widescreen
21 July 	US 	Discs 18-20 of 90 for
7 December 	US 	Discs 21-23 of 90 for
21 December 	US 	Disc 24 of 90 for
21 December 	Japan 	Disc 1 for , containg the Star Trek specific episode of season one
 	 	
21 March 	US 	Discs 25 & 26 of 90 for
22 May 	US 	Discs 27 & 28 of 90 for
5 June 	US 	Discs 29-31 of 90 for
10 June 	Japan 	Star Trek: The Next Generation - Log 1
18 July 	US 	; Discs 32 & 33 of 90 for
22 August 	US 	Discs 34 & 35 of 90 for
10 September	Japan 	Star Trek: The Next Generation - Log 2
4 October 	US 	Discs 36 & 37 of 90 for
December 	US 	Star Trek - The Movie Voyages
Unknown 	FranceGermanyHong KongItalyUK	
Unknown 	Japan 	Star Trek: The Next Generation - Log 3
 	 	
January 	UK 	Disc 1 of 10 for
27 February 	US 	Discs 38 & 39 of 90 for
25 March 	Japan 	Star Trek: The Next Generation - Log 4
26 March 	US 	Discs 40 & 41 of 90 for
2 April 	US 	Discs 88 of 90 for
23 April 	US 	Discs 42 & 43 of 90 for
April 	GermanyUK 	Star Trek - The Pilots
25 May 	US 	Discs 44 & 45 of 90 for
26 June 	US 	Discs 46 & 47 of 90 for
June 	UK 	Disc 2 of 10 for
5 July 	Japan 	Star Trek: The Next Generation - Log 5
30 July 	US 	; Discs 48 & 49 of 90 for
July 	UK 	Discs 3 & 4 of 10 for
10 September	US 	
24 September	US 	Discs 50 & 51 of 90 for
10 September	Japan 	
24 September	US 	Discs 1 & 2 of 30 for
1 October 	US 	Disc 3 of 30 for
10 October 	Japan 	Star Trek: The Next Generation - Log 6
21 October 	US 	Discs 52 & 53 of 90 for
28 October 	UK 	Star Trek: Deep Space Nine - Triple Tribble Troubles
26 November 	US 	Discs 4 & 5 of 30 for
November 	UK 	Disc 5 of 10 for ; disc for
17 December 	US 	
21 December 	Japan 	Star Trek: The Next Generation - Log 7
Unknown 	France 	– 2nd Edition; – 2nd Edition; – 2nd Edition; ; ;
Unknown 	Germany 	Star Trek - The Film Voyages I-III; Star Trek - The Film Voyages IV-VI; Disc 1 for ; Discs 2 and 3 for
Unknown 	UK 	
 	 	
18 February 	US 	Discs 54 & 55 of 90 for
8 March 	Japan 	
18 March 	US 	Discs 6 & 7 of 30 for
21 March 	Japan 	Star Trek: The Next Generation - Log 8
7 April 	UK 	Disc 6 of 10 for
22 April 	US 	Discs 56 & 57 of 90 for
12 May 	UK 	Disc 7 of 10 for
6 June 	Japan 	Star Trek: Deep Space Nine - Second Season Vol. 1
9 June 	UK 	Disc 8 of 10 for
17 June 	US 	; Disc 58 of 90 for ; Discs 8 & 9 of 30 for
1 July 	US 	Disc 59 of 90 for
7 July 	UK 	Disc 9 of 10 for
15 July 	US 	Discs 10 & 11 of 30 for
2 August 	Japan 	Star Trek: Deep Space Nine - First Season Vol. 1
3 August 	Japan 	Star Trek: Deep Space Nine - First Season Vol. 2
26 August 	US 	Discs 60 & 61 of 90 for
7 October 	US 	Disc 62 & 63 of 90 for
7 October 	Japan 	Star Trek: The Next Generation - Log 9
9 October 	Japan 	Star Trek: Deep Space Nine - Second Season Vol. 2
10 October 	Japan 	Star Trek: The Next Generation - Log 10
12 October 	Japan 	Star Trek: Deep Space Nine - Third Season Vol. 1
October 	FranceGermanyItalyUK 	
19 September	US 	Discs 12 & 13 of 30 for
11 November 	US 	Discs 14 & 15 of 30 for
21 December 	Hong KongJapan 	
21 December 	Japan 	Star Trek: The Next Generation - Log 11
 	 	
5 February 	UK 	Disc 10 of 10 for
10 February 	Japan 	Star Trek: Voyager - First Season Vol. 1
31 March 	US 	Discs 64 & 65 of 90 for
7 April 	US 	Discs 16 & 17 of 30 for
2 May 	UK 	, disc for
5 May 	US 	Discs 66 of 90 for
12 May 	US 	Discs 67 & 68 of 90 for
9 June 	US 	Discs 69 & 70 of 90 for
7 July 	US 	Discs 18 & 19 of 30 for
8 July 	Japan 	Star Trek: Deep Space Nine - Fourth Season Vol. 2
4 August 	US 	Discs 71 & 72 of 90 for
5 August 	Japan 	Star Trek: Deep Space Nine - Fourth Season Vol. 1
2 October 	Japan 	Star Trek: Deep Space Nine - Third Season Vol. 2
3 October 	Japan 	Star Trek: The Next Generation - Log 12
6 October 	Japan 	Star Trek: The Next Generation - Log 13
9 October 	Japan 	Star Trek: The Next Generation - Log 14
11 October 	Japan 	Star Trek: Voyager - First Season Vol. 2
20 October 	US 	Disc 73 of 90 for ; Discs 20 & 21 of 30 for
3 November 	US 	; Discs 74 & 75 of 90 for
17 November 	US 	Disc 76 of 90 for
24 November 	US 	Disc 77 of 90 for
10 December 	Japan 	Star Trek: The Bilingual Collection
21 December 	Japan 	– Bilingual
 	 	
2 February 	US 	Discs 78 & 79 of 90 for
10 February 	Japan 	Star Trek: Voyager - Second Season Vol. 1
2 March 	US 	Disc 80 of 90 for
9 March 	US 	Disc 81 of 90 for
25 March 	Japan 	Star Trek: Voyager - Second Season Vol. 2
6 April 	US 	Discs 82 & 83 of 90 for
20 April 	US 	Discs 84 & 85 of 90 for
11 May 	US 	
25 May 	US 	Discs 86-88 & 90 of 90 for
1 June 	US 	Discs 22 & 23 of 30 for
25 June 	Japan 	Star Trek: Voyager - Third Season Vol. 1
6 July 	US 	Discs 24 & 25 of 30 for
23 July 	Japan 	Star Trek: Deep Space Nine - Fifth Season Vol. 1
3 August 	US 	Discs 26 – 28 of 30 for
24 September	Japan 	Star Trek: Voyager - Third Season Vol. 2
5 October 	US 	Discs 29 & 30 of 30 for
22 October 	Japan 	Star Trek: Deep Space Nine - Fifth Season Vol. 2
26 November 	Japan 	
Unknown 	Hong Kong 	
 	 	
11 January 	US 	
24 March 	Japan 	; ;
10 November 	Japan 	Star Trek: Voyager - Fourth Season Vol. 1
22 December 	Japan 	Star Trek: Voyager - Fourth Season Vol. 2
 	 	
25 April 	Japan 	Star Trek: Voyager - Fifth Season Vol. 1
22 June 	Japan 	Star Trek: Voyager - Fifth Season Vol. 2
==External links==
*
* – LaserDisc Database
* at 
it:Laserdisc