How to get MP4 link from Google Drive August 2017!
Beware This post is more than 3 years old, it may be outdated or incorrect! Please check elsewhere for accurate information!
Updated for end of August 2017: Nobody can play Google Drive redirector links anymore, but if you want to generate download links for files, look in this post here, and if you want quality links from Picasa look here.
Please regularly check back this article to find out the latest info!