how do I get rid of flac song files begining with ._ (dot underscore) created by copying with the mac finder. Is there a way to transfer files to internal storage with you using the mac finder, on a mac?
When accessing files on a Synology NAS, macOS may add auxiliary information associated with the files, known as “extended attributes” (EAs). File systems such as FAT32, exFAT, and NTFS do not support EAs. EAs are therefore split into separate files that bear the same names as the original files, but start with “._”.
These “._” files on the destination device are no longer effective, so you can delete them manually.