The Difference Engine (TDE), is a Melbourne based post production company working within the television, corporate and educational sector. TDE has created content for clients such as BHP Billiton, Hard Rock Cafe, Honda MPV, THQ, Oxiana, Shell, Ford, and RACV.

TDE's founder, Evan Butson, is a contributing editor to Digital Media World Magazine, as well as an Industry Liaison Advisor for VCE Media students involved in VET course for Firbank Grammar School and Xavier College in Melbourne.

Evan is also an official Adobe Ambassador in Australia, participating
in online training seminars, product launches and roadshows.
TDE Post formerly The Difference Engine specialises in DV Post Production, using Adobe Premiere Pro and After Effects CS3. Evan Butson is also an  Adobe Ambassador and the host of TDE TV a weekly tech podcast covering all things to do with post production video, afx, soundbooth, photoshop, editing and podcasts