Is there a feature in Jaikoz to convert unicode in filenames, if not also in tags, so my files become compatible in the various utilities I use to attempt to repair faulty mp3 frames and related corruption?
Converting unicode characters in my files
Yes for filenames enable Preferences:File and Folder Naming:Replace Non Ascii Characters and then this will be used with Rename Filename from Metadata and Rename SubFolder from Metadata
For fieldnames themselves there isnt such an option as would it make some fields contain nonsenical information, although you can get make matching from MusicBrainz use an english localised name for an artist if MusicBrainz has an english alias for an non-english artist using Preferences:MusicBrainz:Format:translate foreign artists to english where possible
Note:this option is rather english-centric and I plan to change it so that you can specify a list of locales that an artistname should be changed to if the relevent alias exists (order specifies the preferred locale to use)