Ken,
The latest version of Relative Antics supports customizable criteria for duplicate file detection - check it out!
Instructions:
* Choose 'Duplicate Files' preset in plugin manager.
* Choose 'Edit Advanced Settings' from the drop-down in preset manager section.
* search down for "duplicate file detection options"
* enable items you want considered, disable the rest.
* if current selection not adequate - either add options by analogy, or contact me outside the forum.
* then run it, via File Menu -> Plugin Extras, and let me know (outside the forum) if you have questions or problems.
Note: SQLiteroom is required for "Original Filenames" support (without it, only current filename can be used for filename option).
Rob