Excellent piece of software. Only problem is that there is no documentation, so it took about 10 mins to figure out how to use it. Nearly gave up, but kept at it, and glad that I did (I needed to rename 360 files, and it worked perfectly).
Price: Free Trial ($15.00)
The software developer responded to this review on Oct 28, 2012:
Ron s Renamer has an integrated help file now.