rockit my understanding using mp3 is if you save at 128 bit you get two paths left and right each being at 64bit each so if you save at 256bit you actually get two 128 bit stereo paths , so you are not saving data you are just decreasing your quality of audio if you go stereo with lower bit rate , I always use maximum 320 bit in stereo , I could actually go one step better 320 bit mono and get best quality with same data amount as I run mono to PA anyway. But I couldn’t be bothered as all my files are stereo , too much work for little reward, memory is cheap I wish I could buy some to improve my memory to remember lyrics 😂