The identifier is a shorthand for , a resolution that sits between the industry standards of QHD (1440p) and 4K (2160p) . Vertical Pixels : 1890 Common Aspect Ratio : 16:9 (3360 x 1890 pixels) File Extension : .mp4 (MPEG-4 Part 14)

: Usually paired with H.264 (AVC) or H.265 (HEVC) for efficient compression.

: On a 1080p screen, an 1890mp4 file will be "downsampled," often resulting in a slightly sharper image due to higher color data density. If you'd like to dive deeper into this, please tell me: Are you trying to convert a specific video to this format? Did you encounter this as a file name or an error code ? Do you need a comparison of file sizes between this and 4K?