we have 64ide cdrw drives in two machines. routeenly each drive may last 6-12months then just stops, each has its own hdd and controler card which is of no consiquence. my competitor has a single machine with 64SCSI cdrw drives and has replaced only 1 in the last two years. i am making a case to my boss that our problems stem from the fact ide components are just not made to run as long as scsi our competitor is proof. my boss says there are too many variables involved to make such a statment. is there definitave proof that scsi lasts longer in a constant load situation. these drives are running almost 24/7, any proof out there other than my opinion?