We have used EMC Retrospect for about a year, having switched from Backup Exec to save some money. I have regretted the decision ever since. So far, Retrospect has literally destroyed its backup sets not once, but FOUR times. I have contacted their technical support and was actually told that yes, Retrospect "randomly corrupts its backup sets" and catalogs. I tell you, honestly, I was actually given no other option than to blow away and redo my backup sets each time and was advised by another technician to "create a backup backup set" of the original, because the total destruction of backup sets is a known issue with EMC Retrospect.DO NOT purchase this software if, like me, your career depends on keeping your companies' data backed up. I will be moving back to Backup Exec, regardless of cost, and will never look back.