Can I safely remove old application data

I've recently discovered about 14GB of files in \Documents and Settings\All Users\Application Data\Symantec\SAV Corporate Edition\7.5 with 8 digit hex names like 000000571.  They appear to be in groups of 10-20 files and their datestamps are on days the scans run which is once a week.

 

Can I just blow them all away?  Keep the last n-weeks worth of scans?  Is there some setting I can change to cause them to be automatically removed?

 

-mark