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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 |
3353 reports on 2190 titles
representing 1.03% of total collections |
Top 100 LDs
(realtime) |
- Eraser [14202] (2940)
- Lost Highway [ID3946PG] (1311)
- Contact: Special Edition [15041] (1196)
- Air Force One: Special Edition [71886] (1113)
- Men in Black [82656] (1029)
- Cable Guy, The [82426] (980)
- Starship Troopers [71716] (966)
- Net, The [11616] (893)
- Under Siege 2: Dark Territory [13665] (833)
- Heavy Metal [74656] (555)
- Shawshank Redemption, The [74596] (480)
- Ace Ventura: When Nature Calls [23500] (462)
- Copycat [14168] (434)
- Fugitive, The [21000] (406)
- Professional, The [74746] (403)
- Fifth Element, The [82406] (390)
- Striptease [84976] (384)
- Fan, The [82476] (384)
- Jumanji [11746] (378)
- Fargo [800638693-1] (364)
- Game, The [ID4260PG] (300)
- First Knight [71176] (297)
- Beauty and the Beast: Work in Progress [1591 CS] (286)
- Star Wars Trilogy: Definitive Collection [0693-84] (264)
- The Beatles: Let It Be [4508-80] (250)
- Fair Game [14072] (210)
- Batman & Robin [16500] (180)
- Volcano [0603985] (171)
- Craft, The [82416] (152)
- Demolition Man [12985] (152)
- Willow [79356] (144)
- I Come in Peace [LVD9603] (140)
- Hamlet [94996] (136)
- Barb Wire [800639927-1] (133)
- City of Lost Children, The [40016] (128)
- Donnie Brasco [82516] (128)
- Boot, Das (The Boat) [99916] (126)
- Maximum Risk [27416] (120)
- Tin Cup [14318] (112)
- Gattaca [82646] (112)
- Bad Boys [10716] (105)
- Batman Returns [15000] (98)
- Seven Years in Tibet [21816] (96)
- Gunsmith Cats Chapter: vol.1 [CAVGS/001] (96)
- Johnny Mnemonic [73476] (91)
- Dante's Peak [43311] (91)
- Grumpier Old Men [14191] (90)
- Multiplicity [82446] (90)
- In the Line of Fire [52316] (88)
- Aliens: Special Edition [1504-85] (80)
- Sense and Sensibility [11596] (77)
- Usual Suspects, The [800638689-1] (75)
- Devil's Own, The [82466] (75)
- Raw Deal [LVD9545] (75)
- Disclosure [13575] (72)
- Close Encounters of the Third Kind: Special Edition [76866] (70)
- Replacement Killers, The [21626] (70)
- Crimes of Passion: Special Edition [LVD9523] (70)
- Hook [70606] (70)
- Blade Runner: Director's Cut [12682] (68)
- Fire Down Below [14914] (65)
- Dolores Claiborne [74756] (60)
- Mute Witness [41176] (60)
- Crash: Special Edition [CC1500L] (60)
- Dracula: Dead and Loving It [80096] (55)
- Anaconda [81756] (55)
- Japan: Oil on Canvas [MP116-15VN] (52)
- Grosse Pointe Blank [10040 AS] (50)
- Blade Runner: Special Edition [CC1120L] (50)
- I Know What You Did Last Summer: Special Edition [23926] (50)
- Ace Ventura: Pet Detective [23000] (48)
- Jaws [12-001] (45)
- Lethal Weapon 3 [12475] (45)
- Indian in the Cupboard, The [11646] (45)
- Captain Harlock: Episoden 1-4 [405.4030] (44)
- Man for All Seasons, A [80986] (44)
- Cromwell [81326] (44)
- Birds, The [11-007] (42)
- Buck Rogers in the 25th Century [13-002] (40)
- Legends of the Fall [78726] (40)
- Hunchback of Notre Dame, The [7955 AS] (40)
- Double Team [83236] (40)
- Superman: The Movie [1013 LV] (40)
- Virgin Queen of St. Francis High [ID5273ME] (39)
- MTV's Beavis & Butt-Head: the Essential Collection [MLV49691] (36)
- Class of 1999 [PCLV-10002] (36)
- Die Hard 2: Die Harder [1850-85] (36)
- Ed Wood [2758 AS] (36)
- Video Standard, A [LD-101] (36)
- JFK [12306] (36)
- Assignment, The [28356] (36)
- Titanica [LVD9362] (36)
- Gwendoline (Perils of Gwendoline) [G78F5010] (36)
- Last Action Hero, The [27936] (33)
- Heaven's Prisoners [ID3453LI] (32)
- Day After, The [13755] (30)
- Kate Bush: The Whole Story [080 504-1] (30)
- Client, The [13233] (30)
- Welcome to the Dollhouse [82566] (30)
- Star Wars: The Phantom Menace [PILF-2830] (30)
"Score" is defined as (Rot Level x Nb of Reports)
|
Top 10 Makers
(realtime) |
- DADC USA (948)
- Pioneer USA (554)
- Pioneer Japan (341)
- PDO UK (214)
- 3M or IMATION (147)
- Mitsubishi (124)
- Sonopress (94)
- Kuraray (86)
- DiscoVision (MCA) (76)
- Technidisc (73)
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.
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