EF Duplicate Files Manager could find out duplicate files with same name, same size, same content on specify paths.
Handle optional like folders the ACE, ARC, ARJ, BZIP2, CAB, CPIO, GZIP, IMG, ISO (ISO9660), LHA, RAR, PRM, TAR, TGZ, ZIP and ZOO archives.

Multilingual.

Shareware, FREE updates.