I've been using version 7.3. The one big remaining problem was that it didn't support foreign languages so anything with Japanese, Korean, Chinese, etc characters wouldn't be recognized and therefore couldn't be renamed. (interesting since the app comes from Japan) This has been corrected with version 8.0.
This app is well worth having handy. It's like buying diapers (i guess), not something that's very exciting but very useful. I've renamed 10K plus files in less than 30 seconds with this, among other things. The editing/preview is all real time and fast so you can see the results before committing.
This app doesn't need to be installed. You can just extract the zip/rar into a directory and be good to go.
http://hp.vector.co.jp/authors/VA014830 ... /FlexRena/
License Type: Freeware
Copying/Reproduction: Free
UNICODE file/folder renaming utility,
which can use Wildcard or Regular-Expression, Tag-information (MP3, EXIF) and script (vbs/js).
Features
l Explorer-like user interface.
l UNICODE strings (Japanese/Chinese/Korean/German/French, etc.) supported (New!!)
l Wildcard or Regular-Expression (Perl Compatible) for substitution of file name.
l Multiple file-filter, Real-time preview, Undo.
l Sub-directories process-able recursively.
l Designed for processing a large quantity of files.
l Copy (Move) & Rename to another folder.
l Distribute into the folder by using relative path.
l Consecutive numbers to every classified group (folder, date, tag).
Functions
l Rename (Copy/Move/Create shortcut/Create hardlink) object (file/folder).
Ø Insert a Number or a String(the file's Timestamp/Folder name)
Ø Remove a Number or a String(Shortcut to, Copy (n) of, [n], (n)), Supported 8.3 Format
Ø Translate Letters (upper/lower-case, capitalize)
Ø Replace String
Ø Other flexible rename using pattern matching.
Ø Direct-editing of target name.
Ø Extending function by script (New!!)
l Rename (Copy/Move) using tag information.
Ø ID3(MP3/WMA/APE/MPC/OGG), EXIF, IPTC, Document(MS-Office(also 2007)/PDF), HTML
Ø File-property information (Added tags by Shell Extensions are also available) (New!!)
Ø Extending function by script (New!!)
l Modify object (file/folder) attributes and time-stamps.
Ø Specify date/time, Shift, Random generate, Make the Same.
l Create numbered object(sized file/folder)