2008 - Smoke Again - J.U. & C.Redd
2009 - Grindin' - J.U. Ft. C.Redd
2010 December - Wiggy Walk Vol.1: Come Walk With Me (live mixtape)
2011 February - Bilingual remix-mix of Edward Maya’s “Stereo Love”
maxed out on Soundcloud.com downloads upon first upload
2011 April - On Time Mix (live mixtape)
2011 June - 3am Screw Standard Time (SST)
2011 July - ATX Flippin' Acid (Afrojack & Angello's "Be on Acid" O-Chem remix-mash)
held a spot in Gigacrate.com's top 10 new releases for over a week, featured on various EDM blogs
2011 July - Neon Nights Vol. 1 (live mixtape)
2012 March - The Emphasis EP
2012 March - Wiggy Walk Vol. 2: The Emphasis (live mixtape)
Includes nine O-Chemist original tracks, remixes, reworks, and mashups
2012 April - Episode 001 of “Weekend Whip Game" live mixtape series