You can verify the expected size of any video using the Omni Video File Size Calculator .

A video at 60 frames per second (fps) will be significantly larger than one at 24 or 30 fps because it stores more image data every second.

A typically represents a short high-definition (HD) video, likely between 30 to 60 seconds in duration depending on its bitrate and compression settings . Core Technical Profile

The length of a 14.65 MB file depends on the (the amount of data processed per second).

Typical for a 720p video with a standard web bitrate (approx. 2.5–4 Mbps).

720p is ideal for mobile devices and small monitors, though it may appear "softer" on 4K screens or large displays.

Are you looking to a specific video to this size, or are you trying to identify a particular file you've encountered? Video File Size Calculator (by format)