Now this has been said many many times, and it doesn't really solve the problem you are having with ECDC you are using, but it perhaps will allow you to make copies of Audio CDs
Use Nero instead.
I know you are looking for a solution so you can use ECDC andperhaps someone else can help you with that, but I think the general consensus on this board is that ECDC is perhaps a user friendly program, but far from the best when it comes to stability and errors (the fact you stated you didn't install DirectCD gives an indication you felt that one coming )
I would suggest other who reply to stick to the problem and try to help solve that, instead of everyone simply stating to use Nero, CDRWin or any other program but ECDC, think we all know that by now
Hope that someone has the solution to your problem with ECDC.