Webm" is the most typical just one) towards the MIME variety "video/webm" by using the "mime.forms" file in "/and many others/apache" or through the "AddType" configuration directive in httpd.conf. Interlacing was invented as a method to reduce flicker in early mechanical and CRT video shows with out increasing the quantity https://www.youtube.com/watch?v=imiGL2YS2uo