Here is a checklist of sorts of classic and semi-classic horror / sci-fi / b-movie genre films available on various high quality double feature DVDs.

By classic it is assumed we are speaking about films before the 1980's, with few exceptions.

Also, I am not including on this list companies that deal primarily in public domain releases.

Will update.

UPDATES:
2005/07/26 Removed: Anchor Bay "Drive-In" disks
2005/07/28 Added: Warners "Val Lewton Horror Collection"

20th Century Fox:

• Fly, The/Return of the Fly
• Voyage to the Bottom of the Sea/Fantastic Voyage

Anchor Bay:

• Dead of Night/The Queen of Spades

Anchor Bay "Hammer Horror":

• Abominable Snowman of the Himalayas/Shatter
• Devil Rides Out/Rasputin, The Mad Monk
• Dracula, Prince Of Darkness/The Satanic Rites Of Dracula
• Four Sided Triangle/X The Unknown[/b]
• Frankenstein Created Woman/Legend Of The 7 Golden Vampires
• Lost Continent/The Reptile
• Mummy’s Shroud/Plague Of The Zombies
• Prehistoric Women/The Witches
• Quatermass And The Pit/Quatermass 2
• Vengeance Of She/The Viking Queen

MGM:

• Night Stalker/Night Strangler

MGM "Midnite Movies":

• Abominable Dr. Phibes/Dr. Phibes Rises Again
• Angel Unchained/The Cycle Savages
• Attack Of The Puppet People/Village Of The Giants
• Attic/Crawlspace
• Beach Blanket Bingo/How To Stuff A Wild Bikini
• Beach Party/Bikini Beach
• Comedy Of Terrors/The Raven
• Count Yorga Vampire/The Return Of Count Yorga
• Countess Dracula/The Vampire Lovers
• Cry Of The Banshee/Murders In The Rue Morgue
• Deranged/Motel Hell
• Die Monster Die!/The Dunwich Horror
• Empire Of The Ants/Tentacles
• Fall Of The House Of Usher/The Pit And The Pendulum
• Fireball 500/Thunder Alley
• Ghost Of Dragstrip Hollow/Ghost In The Invisible Bikini
• Haunted Palace/Tower Of London
• Incredible Two-Headed Transplant/The Thing With Two Heads
• Invasion Of The Star Creatures/Invasion Of The Bee Girls
• Invisible Invaders/Journey To The Seventh Planet
• Land That Time Forgot/The People That Time Forgot
• Last Man On Earth/Panic In Year Zero!
• Masque Of The Red Death/Premature Burial
• Mini-Skirt Mob/Chrome And Hot Leather
• Monster That Challenged The World/It! Terror From Beyond Space
• Morons From Outer Space/Alien From L.A.
• Muscle Beach Party/Ski Party
• Oblong Box/Scream And Scream Again
• Psych-Out/The Trip
• Strange Invaders/Invaders From Mars
• Tales Of Terror/Twice Told Tales
• Theater Of Blood/Madhouse
• Tomb Of Ligeia/An Evening Of Edgar Allan Poe
• Voodoo Island/The Four Skulls Of Jonathan Drake
• War-Gods Of The Deep/At The Earth's Core
• What's The Matter With Helen?/Whoever Slew Auntie Roo?
• Wild Angels/Hell's Belles
• Wild In The Streets/Gas-s-s-s!

Universal:

• Dracula's Daughter/Son of Dracula
• Frankenstein Meets the Wolf Man/House of Frankenstein
• Ghost of Frankenstein/Son of Frankenstien
• Mummy's Ghost/The Mummy's Curse
• Mummy's Hand/The Mummy's Tomb
• Werewolf of London/She-Wolf of London

Warner:

• Village of the Damned/Children of the Damned

Warner "Val Lewton Horror Collection":

• Cat People/Curse of the Cat People
• I Walked with a Zombie/Body Snatcher
• Isle of the Dead/Bedlam
• Leopard Man/Ghost Ship
• Seventh Victim/Shadows in the Dark

Lest we forget Teen Wolf/Teen Wolf, Too.

Troll / Troll 2
Watchers / Watchers 2
Poltergiest 2 / Poltergiest 3
Ghoulies / Ghoulies 2 (wheres the "Ghoulies 3 / Ghoulies 4" i ask you)

Anchor bay

Dead of Night/The Queen of Spades

Thanks!

Criterion has 2 different The Killers

Universal: Demon Knight and Bordello of Blood

These films were not released before the 1980's
These films were not released before the 1980's
These films were not released before the 1980's
These films are not from the same genres under consideration here.

BobB

Elite Entertainment's Drive-in Discs have double features as well as cartoons, intermission clips and the "Distort-o" option for sound, providing thin drive-in speaker quality, coming only from the left side and drive-in ambience sounds coming from the right.
Vol 1 - The Screaming Skull / Attack of the Giant Leeches
Vol 2 - The Wasp Woman / The Giant Gila Monster
Vol 3 - I Bury the Living / The Hand

Lions Gate
Waxwork / Waxwork II
OK, I know, not before the '80s. I was writing this before you posted just before me. But, I believe the Elite discs meet your criteria.

And what year are these titles from?:

* A Blade In The Dark/Macabre
* Elvira Mistress of the Dark/Transylvania 6-5000
* Fade to Black/Hell Night
* Hell of the Living Dead/Rats Night of Terror
* Initiation/Mountaintop Motel Massacre
* Pit, The/Hellgate
* Possession/Shock
* Return of the Killer Tomatoes/Return to Horror High
* Society/Spontaneous Combustion
* Fly, The/Return of the Fly
* Deranged/Motel Hell
* Attic/Crawlspace

These "few exceptions" are about half your list. If you're going to make a rule (and, indeed, make it up as you go along, as evidenced by the edit to your original post), at least don't have giant chunks of your own list violate it. If the "Elvira Mistress of the Dark/Transylvania 6-5000" fits, there's no logical reason that "Teen Wolf/Teen Wolf Too" (or any other title from any other decade ever, for that matter) doesn't. A nice attempt at making a list, I guess, but it's not going to interest anyone if you just make up rules as you go along for what fits and what doesn't.

DJ

Yes, you're right, and the Elite disks are a good choice. But I'm changing the rules a bit right now to leave off companies that deal primarily in public domain titles. Its my desire to put together this list based on companies that keep the standard of the quality of theire disks fairly high. Let me know what you think about that.

You're absolutely right. I've removed the Anchor Bay "Drive-In" Disks.

Why not just have a list of all the double feature discs, regardless of year? That would ultimately be more helpful, I think.

But anyways, great list Gojira69! Thanks for taking the time to compile this!

I would suggest The Lower Depths but that wouldn't fit the genre apparently. So anybody reading this if you want to pick up the greatest Double Feature DVD not on the list above get The Lower Depths by Criterion.