Eric,
I need to rename 1000's of files that had the .jpg extension capitalized. All I need to do is to change the extension to lowercase WITHOUT changing the numbering sequence. Any ideas?
Set PM to use lowercase filename extensions. You can do this in the Files tab of Photo Mechanic's Preferences dialog. Then rename the files with the Rename Photos dialog (File menu) using the following as your renaming string:
{filenamebase}
That should do it, though I haven't tested it.
-Kirk