Unfortunately, BRU can only rename files it can't read inside a file so it can't perform a RegEx to extract information inside
a file if that is what you are referring to. If you need information about what BRU can and can't do please read the manual
at
viewtopic.php?f=12&t=4743.
If that doesn't solve your problem and you feel that more help is required in the forums, people here need to have samples usually a half dozen
or more of the filenames that you have as well as corresponding examples of want you want to rename them.
in the form FROM TO
Hope that helps - but first always read the manual - I have written it in a easy to use format.