Total Commander

First of all, thank you mr. Ghisler for making usable CRC scanner just what I wanted / needed... but

If it had one more line for filetype exclusions, that would be great! By default it would scan *.*, but you could add:

a) filetypes which will be excluded, for example
*.jpg *.png *.avi

Files with these extensions would not be scanned.

b) files which will not be scanned, for example
something*.*

This would skip all files beginning with 'something'

There could be a drop down menu with remembered configurations.

Do you mean CRC creation or CRC checking? For creation, you could use branch view Ctrl+B and a quick search filter?

For creation. And why not branch view, I need to select few folders (like I can now in beta) and scan them, but exclude all jpg files, for example. I think it's more complicated when using branch view.
Also, it could be made as include/exclude, for example:

Default is *

Scan only jpg and png:
+.jpg +.png

Exclude only jpg and png:
-.jpg -.png

As for files, same:
-something*.*