[SOLVED] Embed Video in 3.53

hi,

i have ftped a video file onto my server, but now i'm not sure how to embed the video into the top of the post. i want to simply center it and fix the width and height... is there an easy way to do that? i've tried this html...

<center>video url</center> but only the actual url showed up in the post... what's the best way to fix this so the actual video shows/plays and at the right width/height to fit inside my blog post?

thanks for any suggestions!