Working with backup sets : About backup sets : Restore considerations : Restoring data from continuous data protection (CDP) backups
 
Restoring data from continuous data protection (CDP) backups
When you are restoring data of a backup set in which CDP is enabled, the generations of an item are identified by their individual backup times, not by the backup session. This is unlike backup sets in which CDP is not enabled.
For information on how to select a specific generation of an item to restore it, see “Restoring a specific generation of a file”