The Orange Box (AudioSurf Download (Steam Version))

The Orange Box soundtrack as it was included in AudioSurf (steam version).

The mp3s for Half-Life 2 are only numbered, and their numbering does not match up with the official audio cd soundtrack of Half-Life 2.

By listening to both soundtracks, I managed to figure out most of them:

intro - Shadows Fore and Aft
song1 - Particle Ghost
song2 - Lab Practicum
song3 - Dark Energy
song4 - The Innsbruck Experiment
song5 - Pulse Phase
song6 - Pulse Phase
song7 - Ravenholm Reprise
song12_long - Hard Fought
song12_short - Hard Fought
song13 - Suppression Field
song14 - You're Not Supposed to Be Here
song15 - Kaon
song16 - LG Orbifold
song17 - Broken Symmetry
song19 - Nova Prospekt
song20 - CP Violation (submix 0)
song20 - CP Violation (submix 4)
song22 - Combine Harvester
song23_SuitSong3 - Triage at Dawn
song24_Lamar - Headhumper
song25_Teleporter - Miscount Detected
song26 - Our Resurrected Teleport
song28 - Hunter Down
song29 - Apprehension and Evasion
song30 - Calabi-Yau Model
song31 - Brane Scan
song32 - Slow Light
song33 - Probably Not a Problem
Ravenholm1 - Requiem for Ravenholm

I haven't found a track title for song0, song8, song10, song11, song28, song29 and radio1.

Most of these tracks are considerably shorter than their counterparts on the audio cd sound track, they may have other differences.