Music on Hold

when trying to upload a new Music on Hold File following message appears:
Cannot write to file ()
same message comes up when trying enable random play!
what is the reason.

system: centos5 astersik 1.4.15 freepbx 2.3.1

thank you

sounds like it may be file/directory permission issues

hello, i have the same problem, but the dir permissions look fine, owned my asterisk, 775…
what files should i be checking out?