Yup - the hard drive where I store most of my files crashed last week! Even though we did back up, we still lost some files - mostly from this month & last. Yes, that means all the goodies I bought during iNSD weekend.

Apparently, when the hard drive starts to fail (before it crashes), it won't back up properly. So some of files turned out to be fragmented.

I just assumed that since we did backup - it backed up.

How can you tell if your computer doesn't back up properly?