If you go to http://www.000webhost.com
the third item on the comparison under free hosting says:
Data Transfer 100 GB / month
To be honest, if you are basically hosting large files (video), then there are better distribution mechanisms. I think you might have problems with "200MB" files on 000webhost free hosting where the terms of service reserve the right to delete files larger than 5MB if it's draining resource from other users.
Why not use something like a closed user group / fans on YouTube or Facebook until you distribute to the broader audience? They're also free and better setup for that kind of thing (using distribution networks like akamai, etc).
Hope that helps.