Forensic Software: Indexing a Mac disk image in X-Ways

I rarely index an image in X-Ways Forensics because the simultaneous search option is usually fast enough. On this occasion I'm trying it though, and I'd like to ask about code pages; I can select up to four code pages of the dozens available. Which ones should I pick for Mac OS? The OS version is 10.6.8, and the language is British English. The default code pages selected are ANSI - Latin I (1252) and Unicode UTF-16 Little Endian (1200). Are there any forensic references as to searching/indexing and code pages? Conducted a brief Google search but didn't see much. Thanks.