private DateTime ConvertToDate(Int32 day)
        {
            DateTime result = _dayZero.AddDays(day);
            // Fixture file format doesn't assume leap years. so March dates are 1 day behind on leap years.
            if (DateTime.IsLeapYear(result.Year) && result.Month == 3)
            {
                result = result.AddDays(1);
            }
            return result;
        }

        private bool HasMatchesAfter(Int32 address)
        {
            // Return true if there are new match definitions after the specified address.
            // The string of 14 consecutive CD bytes is the way to flag new match definitions.
            for (Int32 currentAddress = address; currentAddress < _fileContents.Count; currentAddress++)
            {
                // We are lazy so should be safe to check only the first 4 bytes. TODO: Check all 14 bytes.
                if (_fileContents[currentAddress] == 0xCD && _fileContents[currentAddress + 1] == 0xCD &&
                    _fileContents[currentAddress + 2] == 0xCD && _fileContents[currentAddress + 3] == 0xCD)
                {
                    return true;
                }
            }
            return false;
        }