I am being told that I could recover a database under 9i with backupsets that were backed up under 8i. Scenario: 8i database (8.1.7.4) on AIX Backup taken using RMAN Upgrade DB to 9.2.0.5 (that level determined by 3rd party application only certified to .5) NO backup taken after upgrade due to time constraints and lack of disk space for backup Lose database and need to recover Restore 8i filesets and recover them under 9i Hasn't happened yet.....we are just projecting.... Can this be done...... According to 3rd party vendor yes with only 3 init.ora settings