4 Hero started in 1989 by pirate radio station Strong Island founders Marc Mac, Gus Lawrence with Dego & Ian Bardouille joining in on production for early releases including their 1st album "In Rough Territory", as the company (reinforced records) structure grew it was just Marc & Dego that continued to produce some of the finest and easily recognised 4 Hero tracks of the era....
Pt I takes tracks from early releases and some choice album tracks....

Move Wid The House Groove
Another Weekend
Put Your Thinkin Caps On
Risin Son
Combat Dance
The Last Ever Bleep Track (Used To Death)
Mr Kirk's Nightmare
4 Hero
Mad Dogs (Feeding Proaganda)
All Be Free (Club Mix)
No Sleep Raver (The M And I Mix)
No Sleep Raver (The G And D Mix)
Make Yah See Spiders On The Wall
Burning (R. Solution Remix)
Marimba
The Scorcher (Dance Mix)
The Scorcher (Musical Merits)
Marimba (The Stop And Start Mix)
Massacre
Can't Strain My Brain
Kirk's Back (Official)
Kirk's Back (For The Thiefs Mix)
Intense (as Is This)
Finley's Rainbow Remix (A Guy Called Gerald)
Reachin'
May The Wicked Perish In The Fire Of Hell
Mind Loss (A State Of Amnesia)
Golden Age
Reaching (Nourishment Re-Mix)
Ghost Stories
Time To Get Ill
Burning
Special Request Remix (Manix)
Where's The Boy (Trial By Ecstasy)
Where's The Boy (4 Hero Remix)
Genesis
Cooking Up Ya Brain
Cooking Up Ya Brain (Sonz Of A Loop Da Loop Era Remix)
The Element (High Noon)
The Elements (Fire & Water Remix)

4 Hero History Mix Pt I

Pt II carries on the journey thru 4 Hero's work, including numerous remixes of other artist's tracks...........

Feel The Energy Remix (Blame)
The Power Dub (R-Solution Remix)
In The Shadow (Sundown)
In The Shadow (Sunrise Remix)
We Bring The Trophy
The Power
Peace & Loveism Remix (Sonz Of A Loop Da Loop Era)
Reality
Students Of The Future
Better Place
In The Shadow Part III (The Stalker Remix) 
The Attack Original Remix (Tek 9)
The Attack Remix Esq (Tek 9)
Journey From The Light
Sunspots
Wrinkles In Time
Power To Move The Stars
Terraforming
Shadow Run
Universal Love (4 Hero Mix)
Journey From The Light (Remix)
Angry People
People Always Criticize Us
Bad Bad Man Remix (Younghead)
Inner City Life Remix (Goldie)
Sounds From The Black Hole
Parallel Universe
Solar Emissions
I've Known Rivers Remix (Courtney Pine)
Music Is Music Remix (Cold Mission)
Universal Love
No Limitation
Follow Your Heart (Part One)
Universal Love (Goldie Mix)
Talk Around Town
Follow Your Heart (Part Two)
Universal Love (L Double Mix)
Mr Kirk (Jungle Mix)

4 Hero History Mix Pt II

Tracklist

Doc Scott - N.H.S (Disco Remix) [Absolute 2]
DJ Edge - Compnded [Edge]
Origination - Bass [Rudeboy]
Acen - 	Trip II The Moon (Kaleidoscopiklimax) [Production House]
Origination - Break Down [Rudeboy]
Jonny L - Hurt You So (Alright) (The 'Full' Mix) [Yo!Yo!]
Under-D-Influence - Brand New 49T2 [Hardcore Vinyl]
MC Lethal - The Rave Digger (Lethals' Original Mix) [Network]
J.F. & E. - Mystery 159 [Robert Maxwell]
Edge Of Darkness - Come Together [ADR]
Foul Play - Ragatere [Oblivion]
Kaotic Chemistry - Space Cakes [Moving Shadow]
The Moog - Jungle Muffin [Delirious]
DJ Phantasy + DJ Gemini - Never Try The Hippodrome (Remix) [Spooky Toons]
Connection - A Different Story [Spare Beat]
Eat Life - Bach To Basics [Ruff, Tuff & Wicked Stuff]
Alien - Forseeing The Future (Regga Mix) [Alien & Monster]
Macka Brown - Go Down Baby [Labello Blanco]
Energizer 3 - Untitled (B) [Energizer]
Psychotropic - Hypnosis (SL2 Remix) [02]
DJ Trace - Inception (After Dark Remix) [Out Of Orbit]
Kaotic Chemistry - Drum Trip II [Moving Shadow]
Serotonin - Dramatical Style [Not On Label - KT 001]

DJ Crossfader - Studio Mix - Autumn 1992

My best guess for the date of this set would be August / September 1991. I can't find a flyer for September's nights but Grooverider played on 31st August 1991. This is Grooverider at his finest merging house, techno and hardcore.

Tracklisting

Man Machine- Animal (Primordial Jungle)
Alex Lee - Take It! (Techno Version)
Two Men On A Struggle - Project 2
Vienna - Tell Me (Innerspace Mix)
4 Slots For Bill - Focus
Insomnia - Nocturnal Grooves EP (A2)
Open House Featuring Placid Angles - Resonance
Inner City - Unity (Reese North Of Watford Mix)
Musicology - Obsessed
George & Mike - Make The Music
Flex - Pump Up The Sound
Ultraworld - Life After Death (House Of Aviance) 
Michael "Kidd" Gomez - We're Gonna Dance
Paperclip People - Gypsy Man (He's A Hobo)
Boom Generation - TV Death
Easymo - N2
Dragon Fly - Visions Of Rage (Original Mix)
Kirk Smith - The Journey
The Badman Presents N.D.X. - Come With Me (Naked Dance Mix)
Supermatic - Open Your Mind (Total Amnesia)
One Tribe - Get Hype
Indo Tribe - I've Become What You Were (Insider Mix)
E-Dancer - Speaker Punishing (The Dirty Mix)
DV8 - This Beat Is Over
Electric Choc - Shock The Beat (Piano Mix)
Metronome - Voyage To The Bottom Of The Bass
X-Men - Phase 2
KC Flightt - Voices (Original Dub Mix)
Bizarre Inc - Raise Me (Eon's Ascension Mix)

Grooverider - Live @ The Eclipse '5' - August / September 1991

I think this will be from July 1991. Unfortunately Parks & Wilson who are at the beginning of this set played with Grooverider on both the 6th and 20th of July 1991 so can't pinpoint the exact date.

Tracklisting

Parks & Wilson

Primal Scream featuring Denise Johnson - Don't Fight It, Feel It (Scat Mix)
T.D.P. Featuring Kurtis Ingram - Jazz House (Hip Jazz Mix)
R.A.F. - We Gonna Get (Extended Mix)
T.D.C. - Can You Feel It (Yum Yum Dub)
Confusion Club - Move!
DBM - Real Dream (House Version)

Grooverider

Altern 8 - Give It To Me Baby
One Tribe - Is This All (Instinctstrumental) 
Carl Cox - Hardcore Massif!
Dragon Fly - Visions Of Rage (Original Mix)
Open House Featuring Placid Angles - Resonance
Technotronic - Work It (Dub Mix)
Lennie De Ice - We Are IE
Jimi Polo - Better Days (Club Mix)
Razor Boy / Mirror Man - Beyond Control
Man Machine - Animal (Primordial Jungle)
The Badman Presents N.D.X. - Come With Me (Naked Dance Mix)
Excalibur - Only One
Kirk Smith - The Journey
Dave Angel - Mesmerize
Is That It - State Of Mind
Vienna - Tell Me (Innerspace Mix)
Praga Khan - Rave Alarm
Noise Factory - The Buzz
Frequency - Hey, Hey, Hey (Panic Mix)
Warp Factor 3 - Rhythm Will Make You Move (Amsterdam Mix)
Shades Of Rhythm - Armageddon  
X-Men - Breakout
Mad Ragga Jon - Rydim Come Forward
SL2 - The Noise (The Original)
Random Noise Generation - Falling In Dub
Numbers & Feelings - So Lonely (Everest Soul Work)

Grooverider - Live @ The Eclipse '4' - July 1991

Bukem showing off his skills at the legendary Sterns in Worthing.

Tracklisting 

Side A

DJ Krome

The House Crew - We Are Hardcore
Nookie - Give A Little Love (Summertime Mix)
Dave Charlesworth - Energizer 2 (B)
Force Mass Motion - Force Mass Motion EP (A1)
N.R.G. - It's Ruff
Bubbles - Re-Booted
MC Uproar - Bad Boy
Basic Rhythm - Nurosis
Spectral - Touch Somebody (Primary Mix)
Sonz Of A Loop Da Loop Era - Far Out

LTJ Bukem

Out-Phase - It's Wonderful Being Alive
Chris Simmonds - Basic Bassis
New Decade - Beyond Understanding
Urban Shakedown - Do It Now!
Rhythm For Reasons - Doomsday (Remix)

Side B

Planet V - Techno Confusions (Krazee Beats)
The Brothers Grimm - Exodus (The Lion Awakes)
ES-PEE-DEE & DJ Distroi - Alphawave EP (B2)
Speedy J - De-Orbit
N.R.G. - Funky In The Place
Tango - Factor 5
Kalaeidoscope Featuring D.J. Ramin - From The Other Side
Asides J - Groove Parameter
Noise Factory - Be Free
Todd Terry - This Will Be Mine
DJ Phantasy - Lets Go (Remix)
Tronik House - Mental Techno (The Marty Hardy Mix)
Sonic Experience - Protein (Vitimin E)
Undercover Movement - A Fly In My Soup?

DJ Krome & LTJ Bukem - Live @ Interdance - 28th March 1992 - Side B

This came out on the bootleg E-ssential Sounds series of tape but was probably released by Reincarnation as well.

Tracklisting

Side A

Loftgroover

Mainx - Hit Your Beep

Kenny Ken

Noise Factory - Urban Music
DJ's Unite - Volume 1 (A)
The Gateway Experience - Twin Freaks
2 Bad Mice - Bomb Scare
A-Dam - Ce La Vie
Sonz Of A Loop Da Loop Era - Far Out
Orbital - Chime (Ray Keith Mutation)
Digital Domain - I Need Relief
Mikey-B With Urban Hype - Relapsed (The Surgeon General's Remix)
Manix - Feel Real Good
Spirit Of Adventure - Total Distortion

Side B

Code 071 - A London Sumtin'
Cosmo & Dibs - Sonic Rush
Toxic Two - Acid Flash
Project 1 - Smokin'
Zero B - Lock Up (Monolith Mix)
Tronik House - Up Tempo (Original) (Reese Mix)
Toxic Two - Rave Generator (Which Mix ??)
Shades Of Rhythm - Extacy (Instrumental)
Dave Charlesworth - The Energizer (A)

Kenny Ken - Live @ Reincarnation 'E-ssential Sounds Tape' - 15th February 1992 - Side A

https://www.hardscore.com/?p=1380

01 The Prodigy -G Force – XL Recordings
02 A Guy Called Gerald – Anything – Sony
03 Desired State(s) – Turn On – Karma Records
04 I.C.P. – Free & Equal (Bonus Beats Mix) – Raiders Records
05 LTJ Bukem – Delitfol (A2) – White
06 Sys’tem X – Wind It Up (Bumpy Instrumental Mix) – Subversion Records
07 Break The Limits – Paranoize – Break The Limits
08 New Era – New Era – Great Asset
09 D’Cruize – I Believe – Boogie Times Records
10 Goldfinger – No Sell Out (Defender Mix) – Blaag Records
11 Toxic – Club Quest – Contagious Records
12 Desired State – Dance The Dream (George Kelly Dub Mix) – Dance Wax
13 Masters at Work – Just a ‘lil’ Dope – Cutting Records
14 Low Noise Block – Rave In A Bedroom
15 The Witch Doctor – Sunday Afternoon – Mutant Records
16 Project One – Smokin’ – Rising High Records
17 Isotonik – Different Strokes – Orange

This mix was recorded on Jungletrain, 8th July 2007 [EXT064]

DJextreme - 1991 Hardcore Vol.4

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Grooverider - Live @ The Eclipse '5' - August / September 1991

Sonz Of A Cassette Tape Era