This OGV file is intentionally made at 64 pixels wide by 48 pixels high and with a 4 bit colour palette in order to test media players. A correct media player with all post-processing disabled should play frames 1 to 25 over one second and then frames 26 to 50 for the next second and so on. Each coloured rectangle should appear completely black, completely white, completely red or completely green, and all edges should be sharp. The media player should also play all 15 clicks from the audio click track as follows (decibel figures are before normalisation):
<dl><dd>0 seconds:   left channel middle volume; right channel silent</dd>
<dd>1.0 seconds: left channel silent; right channel 15 decibels quieter</dd>
<dd>2.0 seconds: left channel at middle volume; right channel silent</dd>
<dd>3.0 seconds: left channel silent; right channel 15 decibels quieter</dd>
<dd>and repeat from 0 to 3.0 seconds, until the last click:</dd>
<dd>14.0 seconds: left channel middle volume; right channel silent</dd></dl>
<a href="//commons.wikimedia.org/wiki/User:84user" title="User:84user">84user</a>
self made in IrfanView 4.23, VirtualDub 1.9.8, ffmpeg2theora-0.26, Audacity 1.2.6 and oggz-tools
<p>7Zip compressed archives of the source PNG files and intermediate AVI file are at <a rel="nofollow" class="external autonumber" href="http://84user.webs.com/files/caltests/check64x48bwrg16pal_4pngs.7z">[1]</a> and <a rel="nofollow" class="external autonumber" href="http://84user.webs.com/files/caltests/check64x48bwrg16pal_25fps_noa12s.avi.7z">[2]</a> (7Zip decompressor needed).
</p>
The oggz-tools command used to merge the video and audio together was: