6. A method as defined in claim 5, wherein the size of a new second record block is greater than the size of the previous first record block.
5. A method as defined in claim 4, wherein the data characteristic statistics include an entropy function for the scanned records and the step of comparing includes the steps of: comparing the entropy function of the second block to a predetermined entropy threshold value; halting the repetition of the steps of selecting and comparing if the entropy of the second block is below the entropy threshold value; and storing the second record block in the interrogation buffer.