I have created a small test about multiple type of content and ways to include them, but everything is standard. It is available here https://en.m.wikipedia.org/wiki/User:Kelson/MWoffliner_CI_reference.

I have scarped it with 1.9.4 and this was a bit disappointing. We have a here many problems, most of them being that the content is simply not made available. I think such a page should be really tested properly to secure that we don't have anymore big problem around multimedia content displaying.