A method of centralized data position information storage comprising the steps of arranging a byte stream of data into partitioned logical data, providing an updateable centralized storage area being operable to store data position information relating to the logical data, utilizing the information to locate a target data and storing the data position information in the storage area using a first algorithm applied to the target data to update the storage area with target data position information and using a second algorithm applied to a non-target data to update the storage area with non-target data position information such that data position information is accumulated in the centralized storage area when a target data is located and accessed.