Videos? you should try it out ;-) Nobody says you have to use the buttons? Personnaly I always use the keyboard (shortcuts), much faster! Changes always occur from left to right. Don't use the mouse: next diff thru keyboard shortcut. Also find previous. And last but not least : can you do the following in Meld? "prepend" & "append" instead of "replace" ...
example in my case <f7> next change <shift+f7> previous change right mouse : popup with : replace, append, prepend,... -- <http://forum.pspad.com/read.php?2,64632,64975> PSPad freeware editor http://www.pspad.com