I utilize Beyond Compare for this functionality. FastPictureViewerCodecPack gives windows the ability for BC to display and diff DDS files. From there you start a folder compare, choose your options, and then start comparing. Options to view all conflicts would be No Orphans Same Flatten... Screenshots re worth a thousand words so look below. No Orphans Same Flatten... Alternatively to see what ISNT in conflict you'd choose to show orphans.. that'd list all files not shared.. DDS Coparison for arrow.dds