An MP4 file with a resolution is a highly non-standard video format, featuring an extremely tall and thin "portrait" aspect ratio. While standard high-definition videos like 720p (1280x720) use a 16:9 ratio, a 7x23 resolution contains only 161 total pixels, making it impractical for traditional viewing. Understanding the 7x23 MP4 Format PERFECT Aspect Ratios for Video you NEED to know!
