Thanks for the reply. I played around with various recovery options and files or folders, rcovering them to the same directory or a new directory. By chance I recovered a file to the C: directory and it worked. I deduced that the problem was I didn't have authority to create new folders. My id has administrator properties but I suspect the recovery program doesn't. I went into security on my PC and granted additional rights for the "basic" id and the restores all went OK.
I am using encryption on the backup as per Veritas recommendations so I have to put in a password to see the recovery files. I don't know where in the Recovery software I can grant access for restoring files. I am the only user on my PC so opening up security is sufficient for the moment.