I can copy them to hard disks on the Mac but not to either of my NASs.
Permissions are also odd but with all files: If I check permissions of a file on my NAS using Finder I see: Owner – (unknown), Group – staff and Everyone. If I check the same file using Pathfinder I see: Owner – markwagstaff (501), staff (20) and Everyone appears in the permissions table. Permissions are the same despite the Owner being unknown using Finder.
If I then copy the file to the desktop and check permissions again Finder and Pathfinder are identical; Finder identifies Owner as markwagstaff (me).
Any ideas ?