Recursivly rename folders removing characters as required

│** ├── Paddy W_ The Untold Story of the Irish American Gangster (581)
│** │** ├── cover.jpg
│** │** ├── metadata.opf
│** │** └── Paddy W_ The Untold Story of the Iri - T. J. English.mobi
│** └── The Savage City_ Race, Murder, and a Generation on the Edge (619)
│** ├── cover.jpg
│** ├── metadata.opf
│** └── The Savage City_ Race, Murder, and a Gener - T. J. English.mobi
├── Tom Philbin
│** └── Killer Book of Cold Cases_ Incredible Stories, Facts, and Trivia From the Most Baffling True Cr (570)
│** ├── cover.jpg
│** ├── Killer Book of Cold Cases_ Incredible Stor - Tom Philbin.epub
│** ├── Killer Book of Cold Cases_ Incredible Stor - Tom Philbin.mobi
│** └── metadata.opf
├── Tony Beett
│** └── The Good Life (789)
│** ├── cover.jpg
│** ├── metadata.opf
│** ├── The Good Life - Tony Beett.epub
│** └── The Good Life - Tony Beett.mobi
├── Trevor Marriott
│** └── The Evil Within - a Top Murder Squad Detective Reveals the Chilling True Stories of the World's (572)
│** ├── cover.jpg
│** ├── metadata.opf
│** ├── The Evil Within - a Top Murder Squad Detec - Trevor Marriott.epub
│** └── The Evil Within - a Top Murder Squad Detec - Trevor Marriott.mobi
├── Troy Deing
│** ├── Book 1 - A Forest Apart (737)
│** │** ├── Book 1 - A Forest Apart - Troy Deing.epub
│** │** ├── Book 1 - A Forest Apart - Troy Deing.mobi
│** │** ├── cover.jpg