Configurable disallowed symbols in filenames

[alok0]

I would like to be able to add additional symbols to the list of disallowed symbols in filenames.

(Specifically hash, #, because it causes problems in a number of other programs I use)

[shypike]

That's not possible.
When files are directly downloaded, par2 would correct them to their original names
(or declare them unrepairable).
SABnzbd only replaces the characters that cannot be handled by the OS.
SABnzbd doesn't do anything with files coming from RAR files.
It's up to you to write your own post-processing script to do renaming.

[sander]

That's not possible.
...
It's up to you to write your own post-processing script to do renaming.

So ... it is possible?! That's cool for the OP!