Hello all, I searched the forums but couldn't seem to find someone who was having the same issues as I am. I'm fairly new to mac but good with linux/unix on the whole. Basically I want to sync my music collection between my MBP and my NAS drive, so naturally thought of rsync, I was not prepared for the unusual behaviour of the mac osx version of rsync however... I've tried both AFP and CIFS and it would seem CIFS is functioning better... Command: rsync -av --delete /local /remote Code: Trance/ Trance/.AppleDouble/ rsync: recv_generator: mkdir "/Volumes/multimedia/Music/Trance/.AppleDouble" failed: No such file or directory (2) I get tonnes of these errors, on most of my directories and files... What the hell is .AppleDouble? I googled it and it seems to be some useless file, but I cannot seem to find it using the finder or terminal! The command, "rsync -aEv --delete /local /remote" seems to copy my entire music collection with "._" prefixed on every file and then they're invisible on my nas via finder, terminal and local ssh... Do I need -E when using rsync? What on earth is extended attributes anyway? Could anyone shed some light on this? Many Thanks!