Cannot tell if or how much scenes were condensed from the originals.
Here's a breakdown of the 14 scenes.
Two stars * * indicates my favorites.
1) Brianna Banks (a.k.a "Mirage," pre-boob job): Gangbang Auditions Vol. 5 * *
2) Roxy Jezel and Lucy Thai: 2 on 1, Vol. 17 * *
3) Keri Sable: Down the Hatch, Vol. 14
4) Sky (aka Skylar): Lewd Conduct, Vol. 4
5) Belladonna: Un-Natural Sex Vol. 7 * *
6) Cassidey (a.ka. Bobby): Lewd Conduct Vol. 6
7) Charmane: Lewd Conduct Vol. 11
8) Jessica Darlin and Melanie: 2 on 1, Vol. 14
9) Nikita Denise and Judy Star: Iron Maidens
10) Gauge: Un-Natural Sex Vol. 5 * *
11) Heather Hunt and Tiffany Taylor: Incumming Vol 3
12) Jewel DeNyle: Down the Hatch Vol. 7
13) Teagan Presley: Perverted Point of View Vol. 7
14) Taylor Rain: Spring Chickens Vol. 8 * *
Good collection. Video quality varies a bit from scene to scene.
I wouldn't rate any of these as the "best" performance, but a good look at these performers early in their careers.