If I have a number, say 1450000001 and I want to represent that as a binary in the form <<16#14,16#50,16#00,16#00,16#01>> what's the best way. I'm not sure what list_to_binary(integer_to_list(1450000001)) which prints as <<"1450000001">> produces but I guess its 10 bytes not 5. BobC