The list includes all R18s from the first hardcore R18 of 16th August 2000 through 2003.
Thereafter only cuts of significant interest have been included
Thanks to Sergio who now maintains the complete list of R18s on his site 

Hardcore R18s Cuts Latest 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

J

by Hynek Cross
Not known
95m 47s. Cuts of 1m 17s were required to sight of man constraining another man with a weapon during a sexual act on the grounds that this constitutes an abusive scenario with potential to harm.

by Ernest Groone (Vivid)
Jenna Jameson, Amber Michaels.
Cuts of 15m 35s were required to sight of abusive and potentially harmful activity (in this instance choking and breath control during sex). Additional cuts were also required to sight of activity in which consent was not established (in this instance a performer shackled and wearing a ball gag).

by Celeste (Harmony Films)
Carli Banks, Jesse Jane, Karlie Montana, Nadia, Celeste Star, Valarie Vasquez
Compulsory cuts of 28:53s  required to remove sight of sex associated with violence (knife run along woman's tongue and traced over woman's nipple) and sight of ball gag tied tightly around woman's mouth when her arms are apparently restrained and she cannot apparently indicate withdrawal of consent

The uncut version is available at Adult Video Universe

by Jim Powers
Not known.
77m 22s. Cuts of 8m 23s were required., some or all of these cuts were substitutions. The cuts were Compulsory. Cuts required to two sequences in an explicit sex work: one of which suggested a lack of consent, the other that a participant in a sex scene might not be an adult

by Jim Powers
Not known.
82m 43s. Cuts of 0m 21s were required., some or all of these cuts were substitutions. The cuts were Compulsory. Cut required to sight of man grabbing woman by throat,

by Jim Powers
Tiffany Holliday, Trent Tesoro.
76m 31s. Cuts of 7m 52s were required. The cuts were Compulsory.
Cuts were required to sequences encouraging an interest in underage sex and to abusive and potentially harmful scenes (in this case performers choking/gagging/having their noses pinched during deep throat fellatio)

Not known
Not known
67m 41s. Cuts of 11m 48s were required to remove sequence in which an adult male role plays as a baby while engaging in explicit sexual activity with an adult female.

by Jonni Darkko
Becca Brat, Brooke Milano, Christie, Flick Shagwell, Jasmine Lynn, Katrina Kraven, Lily Thai, Missy Monroe, Nikki Nite, Sabrine Maui.
98m 12s. Cuts of 0m 21s were required. The cuts were Compulsory. Cut required to sight of urolagnia (woman urinating during dildo penetration)

by Skeeter Kerkove
Diamond, Ava Divine, Nicole Sheridan, Angelica Sin.
134m 17s. Cuts of 4m 31s were required., some or all of these cuts were substitutions. The cuts were Compulsory. Cuts were required to instances of abusive activity and references within an R18 work (in this case aggressive fellatio and a man saying to woman during fellatio, 'Do you want to breathe?')

by Jim Powers (Darker Enterprises)
Tiffany Price, Candy Mason, Brooke Haven, Claire Dames, Natasha Nice, Devon Lee
Submitted in 2007. Running time 132:48s
Cut by 24s. A single compulsory cut was required to remove a scene of gagging during fellatio.

by Jules Jordan
Not known
138m 38s. Cuts of 0m 9s were required to remove sight of an abusive and potentially harmful activity during sex (restricting breathing).

by Jules Jordan (Harmony)
Running time 306:35s. Submitted in 2007
Cut by 2:48s: Compulsory cuts to sexual activity resulting in breathing restriction.Two further cuts were required to urination during sexualised activity.

by Harry S. Morgan
Not known
119m 24s. Cuts of 0m 29s were required The work had three Cuts required to lines of dialogue which highlighted sexual activity by females when they were underage, in the context of an explicit sex video.

by Harry S. Morgan
Gina Wild, Oceane, Daniela, Swedlana, Itchka.
83m 23s. Cuts of 2m 9s were required. The cuts were Compulsory. Cuts required to scenes of urolagnia (urination onto others during sexual activity) and fisting,

by Vince Vouyer
Desert Rose,Cheryl,Jessie J
139m 51s. Three cuts totalling 0m 47s were required to verbal references to underage sexual activity.

by David Luger
Jenna Haze,Scarlet,Mariella
139m 7s. Cuts of 3m 44s were required to remove sight of men causing woman genuine discomfort and pain during sexual activity and engaging in degrading and dehumanising activity.

by David Luger
Taylor Rain,Lexi Matthews
138m 43s. Cuts of 1m 19s were required to remove dialogue references to underage sexual activity.

by David Luger
Anna Belle,Cica,Bonnie Heart
133m 35s. Cuts of 0m 24s were required to remove a dialogue exchange in which a young woman refers to an underage sexual experience in a context which implies women are sexually available before the age of consent.

136m 55s. 2m 45s# Cuts required to an R18 work to remove instances of abusive activity and a reference (woman gagging during fellatio and a reference to performing fellatio at '15')

by David Luger
Melissa Lauren
137m 48s. Cuts of 1m 36s were required. The cuts were Compulsory. Cuts were required to R18 work for encouraging an interest in under-age sex and for abusive activity (in this case,female references to sex at '13', as well as gagging during fellatio)

by Steven Scarborough
Shane Rollins, Robert Van Damme, Brad Star
221m 21s. Compulsory cuts of 26m 39s were required to scenes of sexual activity in which consent was not apparent, other abusive activity and scenes of breath restriction

The highly rated and uncut version is available at SimplyGayDvD

Hardcore R18s Cuts Latest 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z