The rise of the ramp is the vertical dimension and the horizontal projection or run of the ramp is the horizontal dimension. If the slope of a ramp is between 1:12 and 1:16, the maximum rise shall be 30 inches (760 mm) and the maximum horizontal run shall be 30 feet (9 m).
GoPro, Inc. (formerly Woodman Labs, Inc), is an American manufacturer of action cameras, often used in extreme-action videography.
up vote 15 down vote accepted. LRV is a Low Resolution Video on the GoPro. You can use it on your not-too-powerful computer, edit, and then for the final render use the original, high resolution video. You can view it by renaming to .mp4. share | improve this answer.