If your primary goal is just to watch movies offline, modern apps are much easier to use, though they won't typically provide MPG/RM files:
: Services like Zamzar or CloudConvert allow you to upload an MP4 and convert it to MPG or RM for free. Desktop Software : skachat filmy v formate mpg i rm
: Specifically designed to handle these exact legacy formats for compatibility with older devices. For General Movie Downloading (Current Standards) If your primary goal is just to watch