The most important element of medical translation services is, well, three things: accuracy, attention to detail, and appropriateness. Without them, it does not matter what type of technology your translation service uses or the experience of their translators. If they do not have these three attributes, what they produce for you will be less than optimal.
Video used to be the purview of film companies, television and advertising, but over the last two decades, it has become common place as a communications medium. One major factor is the advent of the internet. Now, just about anyone can (and does) have a video offering everything from DIY tips to self-help advice to history lessons and much more. Commercially, virtually every company utilizes audio or video, and many utilize translation services, particularly if they are airing internal meetings or training.