[Pfidy]

I am trying to insert a video on the product pages of XC5 using the WYSIWYG editor menu item Insert Video. I can't get the TinyMCE Filemanager to see my MP4 files. It works fine for jpg images (Insert Image on menu). Is there a problem with my file format? Once the file is recognized, it is ready to go? Of do I need to embed code for a player?
When working, will be video be streamed or put into memory? Wondering about load time issues.