Laserdisc Park: 25 years of audio/video evolution
v3.2.1 / 2019-03-13 
Active Users - weekly: 686 
monthly: 1316 
Register  |  Login 

Specific Lists

DTS 5.1
Dolby Digital AC3
Anamorphic LDs
MUSE/Hi-Vision

Laser Rot

Laserdisc
VHD (Japan)
CED (USA/UK)
D-VHS (USA)
HD-DVD

Music Artists
Opera Timelines

Top 100
Menu


Search/Advanced
Quick Search

 

Laser Rot

Well, Laser Rot is a problem important enough to deserve a dedicated page.

Metal Layer Oxydation (also called laser rot) is the plague of LDs. Impossible to forecast, useless to fight, it can happen anytime during the lifetime of a disc. Hopefully not all LD titles manufactured are suffering from this disease and some Factories are more famous than others on this issue (SONY DADC being #1).

Current Status 6797 reports on 3948 titles representing 0.99% of total collections
Top 100 LDs
(realtime)
  1. Eraser [14202]  (7375)
  2. Air Force One: Special Edition [71886]  (5439)
  3. Starship Troopers [71716]  (3320)
  4. Cable Guy, The [82426]  (2890)
  5. Jumanji [11746]  (2805)
  6. Ace Ventura: When Nature Calls [23500]  (2673)
  7. Copycat [14168]  (2607)
  8. Contact: Special Edition [15041]  (2448)
  9. Net, The [11616]  (2310)
  10. Under Siege 2: Dark Territory [13665]  (2184)
  11. Men in Black [82656]  (2070)
  12. Heavy Metal [74656]  (1980)
  13. Shawshank Redemption, The [74596]  (1768)
  14. Lost Highway [ID3946PG]  (1764)
  15. Fugitive, The [21000]  (1512)
  16. Professional, The [74746]  (1416)
  17. Beauty and the Beast: Work in Progress [1591 CS]  (1325)
  18. Striptease [84976]  (1144)
  19. Fifth Element, The [82406]  (924)
  20. Fan, The [82476]  (882)
  21. Game, The [ID4260PG]  (874)
  22. Demolition Man [12985]  (861)
  23. Dante's Peak [43311]  (860)
  24. Volcano [0603985]  (836)
  25. Fargo [800638693-1]  (722)
  26. Gattaca [82646]  (595)
  27. Batman Returns [15000]  (544)
  28. Willow [79356]  (525)
  29. Boot, Das (The Boat) [99916]  (496)
  30. First Knight [71176]  (462)
  31. Fair Game [14072]  (450)
  32. The Beatles: Let It Be [4508-80]  (442)
  33. Bad Boys [10716]  (392)
  34. Dolores Claiborne [59906]  (377)
  35. I Know What You Did Last Summer: Special Edition [23926]  (364)
  36. Ace Ventura: Pet Detective [23000]  (348)
  37. Johnny Mnemonic [73476]  (345)
  38. Barb Wire [800639927-1]  (336)
  39. I Come in Peace [LVD9603]  (336)
  40. Hunchback of Notre Dame, The [7955 AS]  (312)
  41. Mute Witness [41176]  (297)
  42. Hamlet [94996]  (276)
  43. Multiplicity [82446]  (275)
  44. Tin Cup [14318]  (264)
  45. Batman & Robin [16500]  (264)
  46. Fire Down Below [14914]  (264)
  47. Maximum Risk [27416]  (253)
  48. Grumpier Old Men [14191]  (242)
  49. Star Wars Trilogy: Definitive Collection [0693-84]  (240)
  50. Abyss, The: Special Edition [1988-85]  (210)
  51. Anaconda [81756]  (209)
  52. To Die For [73436]  (209)
  53. Double Team [83236]  (207)
  54. Devil's Own, The [82466]  (198)
  55. Blade Runner: Director's Cut [12682]  (198)
  56. Aliens: Special Widescreen Collector's Edition [1504-85]  (180)
  57. Blade Runner: Special Edition [CC1120L]  (171)
  58. WarGames [4714-80]  (161)
  59. Craft, The [82416]  (160)
  60. Crimes of Passion: Special Edition [LVD9523]  (160)
  61. Jerry Maguire [82536]  (152)
  62. Donnie Brasco [82516]  (144)
  63. American President, The [80176]  (140)
  64. Last Action Hero [27936]  (136)
  65. Usual Suspects, The [800638689-1]  (136)
  66. Grosse Pointe Blank [10040 AS]  (135)
  67. Dracula: Dead and Loving It [80096]  (135)
  68. Disclosure [13575]  (135)
  69. Unforgiven [12531]  (135)
  70. Now You Can See the Music [080 546-1]  (133)
  71. Alien: Special Widescreen Collector's Edition [1090-85]  (132)
  72. Hoodlum [ML106282]  (128)
  73. Switchblade Sisters: Special Edition [RT1001L]  (126)
  74. Specialist, The [13574]  (126)
  75. Video Standard, A [LD-101]  (126)
  76. Kate Bush: The Whole Story [080 504-1]  (126)
  77. Lethal Weapon 2 [11876]  (120)
  78. Sense and Sensibility [11596]  (120)
  79. Buck Rogers in the 25th Century [13-002]  (119)
  80. Raw Deal [LVD9545]  (114)
  81. Adventures of Baron Munchausen, The [76986]  (114)
  82. Seven Years in Tibet [21816]  (112)
  83. Day After, The [13755]  (108)
  84. Muppet Treasure Island [7076 AS]  (108)
  85. Desperado: Special Edition [11656]  (104)
  86. Boyz N the Hood: Special Edition [CC1289L]  (104)
  87. Lethal Weapon 3 [12475]  (104)
  88. JFK [12306]  (102)
  89. Lawrence of Arabia [79626]  (102)
  90. City of Lost Children, The [40016]  (98)
  91. Replacement Killers, The [21626]  (91)
  92. Sword and the Sorcerer, The [13-010]  (90)
  93. Gunsmith Cats Chapter: vol.1 [CAVGS/001]  (90)
  94. Welcome to the Dollhouse [82566]  (90)
  95. ABBA [74-006]  (90)
  96. Safe [11846]  (90)
  97. Hook [70606]  (88)
  98. In the Line of Fire [52316]  (88)
  99. Man for All Seasons, A [80986]  (84)
  100. Close Encounters of the Third Kind: Special Edition [76866]  (84)
"Score" is defined as (Rot Level x Nb of Reports)
Top 10 Makers
(realtime)
  1. DADC USA  (1670)
  2. Pioneer USA  (1066)
  3. PDO UK  (704)
  4. Pioneer Japan  (632)
  5. 3M or IMATION  (336)
  6. Mitsubishi  (260)
  7. Kuraray  (204)
  8. Technidisc  (149)
  9. DADC Austria  (141)
  10. DiscoVision (MCA)  (134)
Ranking is defined as Nb of Reports/Factory

Note that humidity/water do not provoke laser rot. I sadly had a water disaster in my basement and some of my LDs spent 8 hours half immersed in freezing water. Except for the damaged covers and inserts, the disc are still playing nicely.

The main consequence of rot are those "multicolor video speckles/lines" appearing randomly on your screen and becoming more visible at the start or at the beginning of a side.

A stronger consequence can also affect the Digital Audio Tracks that will play with "clicks" and sometimes become completely mute for a few 10th of second because the data is so distored that it has no more meaning for your A/V Amp. This happened to me on Princess Bride CRITERION.

The final effect of a deadly rot will be a completely unwatchable LD. The player simply won't find it's start/timing/chapter sequence and give up playing after several tentatives.

Note that 8" LD Single do not use glue to keep the two sides together and should not be affected by laser rot. None reported so far.

Also, rot is disc/side dependant and could affect Side A while Side B remains untouched. People with access to several copies of the same set might sometimes be able to "reconstruct" a rot-free full set by checking each disc individually and selecting only the good ones.