Replacement earphones
 

After owning my X series for 2 years the earphones have now died on me.

Does anyone know where I can get replacement ones? What is the name of these earphones?

I really like the noise cancelling feature.

mdr nc033 --> http://www.lunashops.com/goods.php?id=1003

I've found out that it's actually the mdr-nc020.

But these aren't available any more.

Are the mdr-nc033 equally as good?

Im also looking for replacement earphones. It doesn't help that sony seem to have made two different versions of the nc020, 1 set with 4 notches on the jack and one with 3. My broken pair have 4 notches, but i can only find nc020 with 3 notches for sale? I have no idea if these will work properly anyone know?

Also im not sure on the sound quality of those nc033 although they seem to have 4 notches?