It may seem a silly question but just what criteria does compare file use? I've two identically named files one with a modified date of 26 April 2014, 18:33:45 and with a file size of 724,034,560 bytes the other with with a modified date of 16 May 2014, 10:51:42 and with a file size of 744,604,672 bytes but when I do a "compare folders select duplicates" these along other files with duplicated names but differing dates and file size are are highlighted as being duplicates I can't believe it's just comparing the file name or have I missed something blindingly obvious??