This is relatively small for HD video. For context, a full hour of 720p video usually ranges from 800 MB to 4 GB . Estimating Video Duration
You can verify the expected size of any video using the Omni Video File Size Calculator . 720p mp4(14.65 MB)
Tools like the Handbrake Video Transcoder can further reduce file size by adjusting the Constant Rate Factor (CRF) or switching to more efficient codecs. This is relatively small for HD video
Measures 1280 x 720 pixels , also known as standard High Definition. It contains approximately 1 million pixels per frame. 720p mp4(14.65 MB)