The plan is to move shared file formats onto their own pages, under a new section called 'Common Formats.' Initially, we'll target the biggest offenders, like Zip. After that we can gradually move down until we eventually have all formats that are shared by, say, 4 games or more.
Games that have been targeted should merely link to the shared format. Maybe with a standard message like 'This game uses the link-to-xxx common format'?
File formats still to be done:
This project will start after the initial release, and should take us about a week or two.
Suggestions, additions and corrections are welcome as always.