Yes, you can upload video files like any other file resource up to the maximum size allowed by your Moodle site. As video files can be large this probably means that they will need to be small, short and of low resolution. You are strongly recommended to encode video files in Flash Video format (see http://en.wikipedia.org/wiki/Flash_Video). For larger video files you may wish to consider using the University's streaming media services. You are strongly advised to seek advice from the LTU (moodlehelp@learn.gla.ac.uk) if considering using video in your course.