Where is the library data created?

A hidden folder is created in the root of the USB memory device or USB hard disk ; in the case of the FAT format, it will be named PIONEER and if it is in the HFS format, it will be named .PIONEER. Library files are created inside the LIBRARY folder, which is inside this (.)PIONEER folder.

*If a library was created with a Mac version of Library Creator in a USB memory device or USB hard disk that is formatted with FAT, then this PIONEER folder will not have the hidden attribute.