This is an ad of Toonzai with Jason Griffith as Sonic recorded AFTER the voice cast change was announced. The footage as you can see was recorded by a cellphone.
More info in this thread:
http://...
After searching for AGES for this specific clip because no one bothered to upload the movie, I finally found it in this YouTube Poop:
http://www.youtube.com/watch?v=24CtSJZGnNU
This is the in...