720×576
720×576 is a standard-definition (SD) digital video resolution used primarily in PAL and SECAM regions. The 576 refers to the number of vertical lines, while 720 denotes the number of horizontal samples per line. In typical broadcast and storage workflows, this resolution is encoded as interlaced video (720×576i) at 25 frames per second, which yields 50 fields per second. Progressive variants (576p) exist but are much less common for traditional SD content.
In terms of aspect ratio, 720×576 with square pixels would be 5:4. To display images at common
Applications and standards. 720×576 is the standard resolution for PAL/SECAM SD video in digital formats, and
Today, 720×576 is largely superseded by high-definition formats but remains relevant for archival SD content and