Just wanted to let you know that changing the extension back to .zip from .ewf files did not work for me.  I tried that first and ended up having to redownload the files.  This is the only place that I have had this happen...I download from other sites and have never had a problem - however, being new to CA Antivirus....I'd always used Norton in the past....I won't say it won't happen again, somewhere else.

Thanks for your insights, however!