There are several ways you could approach this. One way is to use the Rename, Move, and Copy tool to standardize your file naming. You'd select everything and then set up a template for the file names that didn't contain any "-" characters. This would potentially rename every file you have, which might be a good thing, or might be a bad thing depending on what you want. Having standardized names can be great as long as you have meta data to drive the process. It makes everything very neat and clean.
But I have a funny feeling that's not going to appeal to you just yet. So how about just removing those damned hyphens then? Here's what I just tried and it seems to work:
1. Go to a view that shows all of your files.
2. In the search box at the top, paste in this:
[filename]=-
This will find all files that have a hyphen anywhere in the name *or* the path name (folders). If you don't want to find folders with hyphens and only care about the filename, use this instead:
[filename (name)]=-
3. Now you should see a list of all files that have hyphens in their names. Select some of them as a test group.
4. <right click> Library Tools > Rename, Move, and Copy Files.
5. In the RM&C dialog that comes up choose the following options:
A. Top pulldown list: Rename
B. Move all files in folder: <Checked if you are going to be changing folder names too. Unchecked if you are only changing file names.>
C. Directories: Unchecked
D. Filename: Unchecked
E. Find and Replace: Checked
Find What:-
Replace with: <type a space here if you want to replace with space. Type nothing to just delete the hyphens.>
6. Look at the preview pane to the right and examine the old and new file names. Make sure that they look like you want them to. If they don't, adjust your find and replace until they do.
7. Press OK to rename these files. Repeat from step 3 above with a larger group, or even everything remaining if you are confident.
That should work for you. Make sure to test with several groups before you do thousands of files. Check the Preview Pane! Good luck.
Brian.