BDELMAN  This software was easy to use and very fast. It renames 3000 files in about 4 seconds. Unly kudos!  
(Version 1.2.1)

FREDDUCKER  The drag and drop feature didn't work when dragging finder search results onto the app window... which is the thing i was trying to do.  
(Version 1.2.1)

STEVE  works as it says it does, i really enjoy this handy application  
(Version 1.2)

JONATHAN ARMENTA  Saved my arse. I needed to process about 900 images and during my upgrade to OSX I failed to get a newer version of zinorename which always crashed. I found this easier to use interface and quicker results. Thank you very much.  
(Version 1.2)

CHRISTOPHER DRUM  Regarding FileWrangler speed....

Here are some time tests I just ran. Given a folder with two subfolders, themselves with two subfolders each, and a total file quantity of 50 files (some of which are RTFD documents), renaming was near instantaneous. By duplicating files and subfolders, I created a folder with six subfolders, themselves with four to six subfolders each, and a total quantity of almost 1,000 files. Renaming of all documents took about 10-15 seconds. Further reduplication of all files and subfolders, creating a complex folder heirarchy and a total of 5,000 files took 1 minute 50 seconds to rename all files.

These tests were run on a PowerBook G4 running 10.4.1 at 1.5GHz and 2GB of RAM. Your mileage may vary. I don't know if these speeds are slower than expected; they seem fairly snappy to me (especially given how long it would take to do manually). Perhaps the current lack of a progress indicator makes FileWrangler feel slower than it really is?  
(Version 1.2)

TJ  Wondering if it was mem but dos it seem to take a long time to actually do the renaming? Do I have somethign set wrong?  
(Version 1.2)

JOHN KERSHAW  Excellent addition to any file-munging toolbox. I'd like to see the ability to add multiple prefix/suffixes, and regex replace.

I downloaded this app because R-name doesn't do parent folder stuff. The files I wanted to rename were:

photos/1/1.jpg -> photos/1_1.jpg

photos/1/2.jpg -> photos/1_2.jpg etc

so I needed to prefix with parent folder and an underscore. In the end I put an '_' into the delimiter field, but when there are so many options for prefix/suffix it'd be nice to be able to select more than one.  
(Version 1.1)

MARK MASON  FileWrangler has an extensive, and impressive, feature set. I had been using Renamer4Mac, too. If it has crashed on you, it's always good practice to inform the developer, as I did. I have been looking to find a fast way to rename files that contain invalid characters under SMB. I am now backing up to an SMB server which has forced me to rename my documents for that purpose. FileWrangler seems ideally suited for renaming batches of images from digital cameras, and has a UNIX file name violation filter, but not one for SMB filtering. Great app. though.  
(Version 1.1)

ANONYMOUS  FileWrangler is useful if you want to rename files, but I can't find a way of renaming folders or symbolic links  
(Version 1.0)

ME  Have started using this to rename MANY medical images taken for teaching, etc. Very complete program and fast. Can't find any glitches yet.

I think it may be more complete and easier than Renamer4Mac, which I've been using: it has crashed some, but usually is fine. That's why I searched for a more stable product: I think this is it. Will followup in weeks.  
(Version 1.0)

HELLSTUDIOS  Impressive. We use this kind of thing quite often on Windows machines at work, but I am trying to build up a set of Mac tools. Of the renamer apps I have so far tried, this one stands out as the best.

The controls are intuitive, and it is comforting to see three versions of the naming convention available (essentially past present future)

I also like how everything is in the interface. The menubar is essentially unused.

I like it! Good work.  
(Version 1.0)