An array of octets holding additional error information. An example is ECC Syndrome or the return of the check bits if a ...

An array of octets holding additional error information. An example is ECC Syndrome or the return of the check bits if a CRC-based error methodology is used. In the latter case, if a single bit error is recognized and the CRC algorithm is known, it is possible to determine the exact bit that failed.  This type of data (ECC Syndrome, Check Bit or Parity Bit data, or other vendor supplied information) is included in this field. If the ErrorInfo property is equal to 3, \"OK\", then the AdditionalErrorData property has no meaning.