PhotoRename for Windows (normally sold for $19) will rename all your digital image files using informative and descriptive filenames. Use EXIF date/time and other info. Program features:

• Easy-to-use interface
• Select individual files or scan folder(s)
• Rename files using EXIF date/time (incl. Nikon NEF files)
• Customize date and time output (month-day-year, year-month-day, etc.)
• Rename files using image pixel size
• Modify existing filenames by adding additional info
• Explorer integration (right-click on any folder)
• Image preview
• New filename preview
• Undo changes
• ..and more

More info on PhotoThumb.com

Donate any amount to keep the dream alive. After clicking on the donate button, you'll be guided through the Paypal donation process, where you can write a message to the recipient (i.e. yours truly). Let me know if you would like a PhotoRename license. I'll send your license via e-mail as soon as possible (usually within 24 hours, or sooner).