CD copy for portable cd player

Hi GUys, I am new here

What speed should I copy a audio CD that will play on a portable cd player.

ALso I need to make 150 copies of a CD for a community project.What is the best method to do this. At the moment, I made an image and I am
burning one at a time via Nero express.Is there a faster method.

THanks GUys

Hi and welcome to the forum! For audio CD u can safely go up to 16x, not faster, even if u use 52x media. Alternatively to Nero u can use Burrrn (.net) And I think u can set a number of copies u want and then just change blanks.