Okay, best I could do in half an hour, and I don't have timestamps because I don't have the DVDs or Blurays handy. I will look stuff up in more detail if you'd like. I apologize in advance for the length!
TNG
"Justice" - There's some good stuff throughout this score, highlights include the jogging sequence, and the scene where the energy ball appears and knocks Data down. A complete score is out there but it's pretty poor quality.
"The Measure of a Man" - When Maddox is on the bridge discussing Data, and Data packing in his quarters.
"Contagion" - Some good action cues at the end of the teaser and the opening of the first act.
"The Hunted" - Some of McCarthy's better action cues, both in the first and last two acts.
"Transfigurations" - The final cue, reworked for "All Good Things" but in its original form here.
"The Mind's Eye" - The cue from the last act, especially the moment where Geordi picks up the phaser and walks down the hallway.
"Conundrum" - The somewhat eerie cue from Act I, reused in "Cause and Effect", "Time's Arrow, Part I", "Man of the People" and I believe "Timescape" as well.
"Starship Mine" - The cue where Picard is alone on the bridge.
"Masks" - Some great atmospheric cues throughout the episode.
"Genesis" - Some creepy moments here and there, as well as the shuttle approaching the Enterprise with what I call the "Season 7 French Horns".
DS9
"Blood Oath" - The whole last act, some really great action stuff, sadly dialed way down in the episode.
"Equilibrium" - The Joran Dax piano music.
"Meridian" - Some nice romantic McCarthy cues, he was quoted as being really pleased with this score.
"Fascination" - The last act has some great comedic music.
"Shakaar" - Paul Baillargeon's first DS9 score, the whole thing is worth including.
"The Muse" - Some nice atmospheric music, and the moment in the last act where Onaya leaves.
"Children of Time" - The rest of the score! At the very least, the moment where older Odo and Kira walk together in Act 2. The most beautiful 20 seconds of music I've ever heard.
"Empok Nor" - Some really great scary moments throughout, and the drums prior to the Garak/O'Brien fight are top notch.
"The Magnificent Ferengi" - Some good comedic stuff here.
"Treachery, Faith and the Great River" - The space battle, great David Bell score.
"The Dogs of War" - The final scene with Sisko and Kasidy.
VOY
"Parallax" - After Voyager is shaken up the first time, some great, interesting piano work here.
"Maneuvers" - The cue where Chakotay's shuttle is hiding under the Kazon ship.
"The Thaw" - The carnival source music and the scene where they fail to stop The Clown from beheading the scientist.
"Real Life" - The whole thing, please!
"The Gift" - The final cue.
"Revulsion" - More great David Bell stuff, especially the last act.
"Message in a Bottle" - The humorous space battle in the last act.
"The Killing Game" - As much as possible, including Jeri Ryan's vocals.
"Tinker, Tenor, Doctor, Spy" - The briefing room fantasy scene, hilarious sax music. And the Doctor's song!
"Memorial" - Some great, pounding percussion during the flashback sequences.
"Imperfection" - The brief space chase, again, David Bell...
"Endgame" - The whole thing will probably get released, but I really want the cue from the Tom & B'Elanna
"flyboy" scene.
ENT
"Cold Front" - Silik jumping out of the ship, and the final cue.
"Dear Doctor" - Some more from this score would be nice.
"Shuttlepod One" - Some nice, subtle stuff from the last act and final scene.
"Acquisition" - The first act is mostly music-driven, some fun stuff.
"Fallen Hero" - The moment Enterprise hits Warp 5.
"Singularity" - Unusually intense, pounding score from Jay Chattaway.
"Anomaly" - Surprised this wasn't on the first volume. Awesome stuff, especially the raid sequence.
"Borderland" - Soong's failed escape.
ODDS AND ENDS
A TAS release would be amazing but unlikely at this point. But you never know!
The TNG episode trailer music from season 5:
https://www.youtube.com/playlist?list=PLE184A910DCEE829C
And last, but not least, the glorious 80's "Countdown" Encounter at Farpoint trailer music:
I think that about covers it.
