I can only read only how do I change this?

oktakal

Honorable
Dec 22, 2013
2
0
10,510
On the get info does not give me option to change. I can take of but can no longer put anything on it. The drive is 320G and nothing is really on it, and would be a shame to get rid of it due to it's age of only four years. There is no switch on the device itself and the sharing and permissions gives me no options to change. What else can I do? Thanx
 

oktakal

Honorable
Dec 22, 2013
2
0
10,510

I'm so sorry I should have been more specific It is an external hard drive called SimpleTech and IO am using a Mac
Thanx….