I was about to upload my music to TuneCore who would then distribute it to iTunes, Spotify, etc. and noticed that they said to make sure my music was in 16 bit format. It was my understanding that 16 bit is just for burning CDs. You have to dither/add the noise to bring 24 bit recordings down to 16 bit because CDs can't handle 24 bit, but it was my understanding also that if I'm uploading my music to online streaming services like Spotify or iTunes where people are purchasing DIGITAL copies of my music, shouldn't it stay in 24 bit? Very curious to see what people think here. Thanks!