Many download managers have the ability to capture all media found on a page, website, etc. This is called a browser integration feature and based on the configuration settings and the rules in effect, you can schedule a simple file downloader to capture all the videos/music files found on a website. For this kind of job I would recommend Internet Download Manager because of its high support service among all modern browsers and for the feature you are requesting. Simply, install the software, restart the computer and browse a page with lots of video files and then right click on the page and select Download all with IDM. From the window that pops out, select only the files you need. You will have the possibility to visualize what type of files are ready to download. Select all video content (FLV, MPG, AVI, MOV, etc) and click download.