everything has been fine with backups until this last weekend. my full backups got a "corrupt on media" error with some tomcat files. I run NW6.5 SP3, newely installed on this server. and BE 9.1 1154.
I do not run Norton, I run Mcafee. turning it off is not an option. it scans inbound only anyway.
why and how do they become corrupt and how do I fix them.