Folder permissions on NAS
We have a Netgear ReadyNAS on our local office network. I copied some files to it and now I want to delete them. But when I try, the OS does a count, and then I get the following error message: "The operation can't be completed because you don't have permission to access some of the items". Can someone suggest what's going on here? I've posted this question to the Netgear forum, but I've never gotten very good response to those queries.
MacBook Pro (15-inch Mid 2012), OS X Mavericks (10.9), 2.3 GHZ Intel Core i7, 16 GB RAM