Sonic Underground: Volume 1 (simply titled Sonic Underground on the DVD cover) is a DVD boxset of the complete first season of Sonic Underground. Published by Shout! Factory on December 18, 2007, this boxset consists of four discs covering all twenty episodes of Season 1. The boxset also contains bonus material, including behind-the-scenes interviews with the staff and a compilation of songs from certain episodes. The total running time of the boxset is approximately 480 minutes.
- Beginnings (Origins, Pt. 1)
- Getting to Know You (Origins, Pt. 2)
- Harmony or Something (Origins, Pt. 3)
- To Catch a Queen
- The Price of Freedom
- Underground Masquerade
- Tangled Webs
- The Deepest Fear
- Who Do You Think You Are
- The Last Resort
- Come Out Wherever You Are
- Winner Fakes All
- A Hedgehog's Home is Her Castle
- Sonic Tonic
- Friend or Foe?
- Head Games
- When in Rome...
- BONUS: Developing the Underground - A retrospective interview with executive producer Robby London.
- BONUS: Songs from the Underground - A look at the music of Sonic Underground, featuring interviews with original songwriter Mike Piccirillo and executive producer Robby London.
- BONUS: Storyboard-To-Screen: The Opening Titles
- BONUS: Original Concept Art
Disc 4 (Sonic Underground's Greatest Hits)
- Sonic Underground Main Title
- Let's Do It To It (from "A Hedgehog's Home is Her Castle")
- I Wish I Could Go Faster (from "Sonic Tonic")
- Where There's A Will, There's A Way (from "When in Rome...")
- Mummy Wrap (from "Mummy Dearest")
- The Mobius Stomp (from "New Echidna in Town")
- We're The Sonic Underground (from "Healer")
- Lady Liberty (from "The Pendant")