Hey there,
Have you been at least Googling to see the size of an integer in C#? An integer is a signed 32-bit value. In other words, 1 int = 4 bytes.
int[] data = {123, 321423,3950024, 2385704, 9759023,48634, 987653,6456895,46985589};
byte[] result = Array.ConvertAll(data, intValue => Convert.ToByte(intValue));
Of course, you can tweak this line of code if you are using C#3.5 or above.
But one important thing to note is that,
Convert.ToByte
method converts a 32-bit integer to an 8-bit integer, and I hope I don't need to point out what that would result.
Hope this helps, regards