My company has been using the Sony AIT4 Stor Station for about a year when one day one of our tapes would not eject due to a faulty entry door. Sony sent a replacement and we had trouble getting the software to detect the device but finally succeeded. Then we went through all the steps to get it ready for the 1st backup and everything seemed ok. Failed on the verify from there on...contacted Veritas(Symantec) and they were of no help. We installed current SP for Veritas and sent in the diagnostics to Veritas and they concluded it was either the device or the media(which was practically new). After reinstalling drivers and firmware and having no success, Sony sent another Stor Station . Second device was detected immediately so I assumed that the problem was solved. Full backup succeded but then all the differentials have failed since then. We rebuilt the differential job and even tried new Sony AIT4 tapes. I have cleaned the device but still no success...this is extremely urgent and do appreciate all your help! Again this began when the new replacement devices were installed. They are the exact same model and this server is running 2003 standard edition. This is s SCSI device.