No problem.
P.S. The video thing is been done, meaning you can place additional hidden code inside a video but you need an external "stimuli" to energize the video. I cannot help on doing this because it's a basic principle of a virus, so unless you want the site owner to get sued (at least in US) you shouldn't be doing any videos like that. I've done the above in pictures, i must admit, a long time ago and for research purposes in C or C++ , can't remember now. No idea if it can be done with C# or VB.