I think I can shed a little light on this topic. I collect Private Screenings videos (amongst other things) and have over 110 different titles in my collection. PS was originally a distribution company and not a production company. My videos are in storage, so I can't give you the dates the videos were released. The first video released by PS was Emanuelle the Queen on the VidAmerica label. Next came the first round of releases on the Media label in the original white sleeve with a circular image from the film and a consistent design to all the boxes. A second round of releases was made with all new artwork for the sleeves, so every box looked different. The next round of releases came on the Luna video label, which added new titles to the line. They also released many of the same films, but with new titles. To be fair, the previously used title was on the back of the sleeve in very small print running vertically down the right edge. Luna also released several other similar films, but not under the PS label. Finally, the III Star video label released the most recent PS titles including the Marilyn Chambers videos. I personally don't consider them real PS videos. The quality was much poorer than the earlier releases. There is no comparison between the Media version and the III Star version of Felicity.
First, regarding All for Love, that was a soft core edit of the hard core film Blonde in Black Silk, which is now available on DVD from Video-X-Pix. Backup should be able to find it easily.
A few comments about some of the old PS films. Loves of Irina is the only PS film the has hardcore sequences in it. This Jess Franco film has been released with many different titles (Bare Breasted Countess, Erotic Kill, Female Vampire, etc.) usually in a soft core edit in the US and UK, but Irina has the blow job scene intact. The box info for Midnight Party is clearly for another Franco film Porno Dama, but the content is the soft core version of Max Pecas' Luxure. Sweet Sensations (Dietrich's Stewardesses) has no hard core action, but there is a clear shot of a hard core magazine that one of the stewardesses glances through.
Anyway, here is a list I compiled of the PS releases with some comments regarding original titles and re-releases. It may not be complete, but it's pretty close. It's worth mentioning that many of these are now available on DVD, mostly from Europe.
PS titles from VidAmerica
Emanuelle the Queen (original title: Emanuelle the Queen of Sados)
PS titles from Media & Luna
Alexandra's Sisters
Alice in Wonderland
All for Love (edited from: Blonde in Black Silk)
All the Way Down (re-release of: Snowballin')
Amorous Sisters (edited from: Six Swedes on a Campus)
And When She Was Bad
Barbara's Escapades
Barely Innocent
Baring It All!
Calendar Girls
The Chambermaid's Dream (original title: Frustration)
Class Reunion
Come Play with Me
Confessions of a Young American Housewife
Copenhagen Nights (original title: Candido Erotico)
Dangerous Love
Dormitory Girls
Dracula Blows His Cool
Ecstacy, Inc.
Emanuelle and Joanna
The Erotic Adventures of Heidi
Erotic Illusion (original title: The Lickerish Quartet)
Erotic Passion
Erotic Taboo
Evil Come, Evil Go
Exposé
Faraway Fantasy (re-release of: Has Anyone Seen My Pants?)
Felicity
Forbidden Impulse
Friendly Favors (re-release of: Six Swedes at a Pump)
The Girl from Starship Venus
Girls After Midnight
The Girls of Don Juan
Girls of the Club Amour
Girls Without Lovers
Happy Sex
Has Anyone Seen My Pants? (re-released as: Faraway Fantasy)
Hellcat Female Mud Wrestlers
Hot Sex in Bangkok (re-released as: Inn of Temptation)
Infamous Daughter of Fanny Hill (original title: Notorious Daughter of Fanny Hill)
Inhibition
Inn of Temptation (re-release of: Hot Sex in Bangkok)
Innocent Sally (original title: The Dirty Mind of Young Sally)
Island Women (edited from: Gefangene Frauen (Captured Women))
Joy
Juliet's Desire (original title: The Secret Sex Lives of Romeo and Juliet)
Lady of Lust
Lady of the Rising Sun (re-release of: Yellow Emanuelle)
Legend of the Golden Goddess (original title: Trader Hornee)
Let Me Love You
Love Angels
Love Desperados
Love Lessons
Love, Lust and Ecstacy
Love Trap (original title: Let's Get Laid)
Loves of Irina
Lucifer's Angels
Madison Ave. Confidential
Maiden Quest (aka: The Long Swift Sword of Siegfried)
The Mark
Midnight Party (original title: Luxure)
M'Lady's Court (aka: Devils in the Convent)
My Father's Wife
My Nights with Sandra, Olga and Julie
Mysterious Jane
Nathalie
Nurse on Call
Operation Orient
The Other Woman
Overnight Models
Passion of Evelyn (original title: Bloodsucker Leads the Dance)
Patricia
Penthouse Playgirls
Pin-up Playmates (also released as: Vacation Temptations (same box except title))
Pleasure Unlimited
Practice Makes Perfect
Rebel Vixens (original title: The Scavengers)
Revealing of Elsie (re-release of: Strip for Action)
Romeo and Julia
Secret Fantasy
Secrets in the Dark
Sensual Partners
Sensual Taboo (original title: Mondo Freudo)
The Sensuous Wife
Sex Adventures of the Three Musketeers
Sexy Sisters
Sister Emanuelle
Six Swedes at a Pump (re-released as: Friendly Favors)
Snowballin' (re-released as: All the Way Down)
Starlet
Strip for Action (re-released as Revealing of Elsie)
Sweet Sensations (original title: Die Stewardessen)
Sweet Spirits
Sweet Young Thing
Sweet Young Trouble
Tea for Three
Tempting Roommates
There's No Sex Like Snow Sex
To Be Twenty
Traveling Companions (re-release of: Truck Stop)
Trouble in Paris
True Blue Confessions
Truck Stop (re-released as: Traveling Companions)
Undercover Vixens (original title: The Harem Bunch)
Vacation Temptations (also released as: Pin-up Playmates (same box except title))
Venus on Fire
Victorian Fantasies (aka: What the Swedish Butler Saw / A Man with a Maid / The Groove Room)
Village Girls (original title: Change Pas De Main (Don't Change Hands))
Voluptuous Vixens
Wild and Willing
Yellow Emanuelle (re-released as: Lady of the Rising Sun)
other Luna titles not PS
Desire Under the Sun
Dreams of Laura
Fait Accompli
Frustration
Hand of Pleasure
Hot on the Trail
Love Games
Savage Passion (original title: The Ramrodder)
Sun Bunnies (original title: Beach Bunnies)
PS titles from III Star
Broadcast Bombshells
Carnival of Love
Felicity
Emanuelle Queen of the Desert
Loves of a Wall Street Woman
Marilyn Chambers' Bedtime Stories
Marilyn Chambers' Breakfast in Bed
The Marilyn Diaries
New York Nights
Object of Desire
Passion
I'd be happy to discuss the old PS anytime. I love this stuff.