Thanks. No wonder the arf file is a plain tarball rather than a compressed one and I cannot change its name for sharing violation. (Does "arf" stand for "audio receiver file"?)

Then I tried "mount -t nfs -o ro peko:/tftpboot/x.x.x.x /mnt/tmp" from my Linux box where peko is the Win2K server and x.x.x.x is either my Rio's IP address or Linux' own (I did SSDP to register ir), but connections were refused. Do they use a special port number or is some other authentication needed? Also, if /tmp is on a read-only NFS volume, wouldn't some applications suffer inability to use /tmp? Or, is /tmp just another mounting point?

hiro