changing the default media locations

[ams]

hi

iḿ trying tomove the media default from where is at the moment to a new (2 nd hd) and i get this error

Warning: copy(/mnt/device/38/pictures/pictures) [function.copy]: failed to open stream: Permission denied in /var/www/pluto-admin/operations/mediaBrowser/editMediaFile.php on line 424

Warning: Cannot modify header information - headers already sent by (output started at /var/www/pluto-admin/operations/mediaBrowser/editMediaFile.php:424) in /var/www/pluto-admin/operations/mediaBrowser/editMediaFile.php on line 439


any one got any ideas?

thanks