| A | Disco Lights | 7:10 | ||
| B1 | Acid | 6:06 | ||
| B2 | What Happened? | 6:05 |
This is the second release.
Track A samples Planet Patrol's 'Play At Your Own Risk'.
Mastered using Direct Metal Mastering (DMM) technology.
Pressed at Europadisk, NY, USA.
| Title, Format | Label | Cat# | Country | Year | ||
|---|---|---|---|---|---|---|
| What Happened? (12", Yel) | Abe Duque Records | ADR 7 | US | 2004 | ||
| What Happened (Remix Contest Winners) (12") | Abe Duque Records | ADR72 | US | 2010 | ||
| What Happened? - Part 2 (4xFile, MP3) | Process Recordings | PRCS129 | UK | 2010 | ||
| What Happened? - Part 2 (CDr, Single, Promo) | Process Recordings | PRCS129 | UK | 2010 | ||
| What Happened? (3xFile, MP3) | Process Recordings | PRCS125 | UK | 2009 |