most modern browsers have support for native mp4 and it works well, much better than flash.
I used the plugin called mp4_player
file codebase.php comment lines that start with $pic_html
just under the commented lines add the line:
$pic_html = "<video {$autostart} loop poster=\"{$thumb}\" width=\"{$CURRENT_PIC_DATA['pwidth']}\" height=\"{$CURRENT_PIC_DATA['pheight']}\" controls><source src=\"{$file}\" type=\"video/mp4\">Your browser does not support the video tag.</video>";
and you will get a native mp4 player
the original plugin (http://forum.coppermine-gallery.net/index.php?topic=59481.0)
I have to plug my site (http://gallery.esfbc.com/) ;) please, no ddos ;D ;) ;) ;D