What is CD quality?

CD quality refers to the amount of detail saved to an audio file that would be typical of what you would find on a CD. This is measured in how often a change in the sound wave is detected, known as the sample rate, and to what level of detail this change is measured to, known as the bit depth.

Sample rate is measured in kilo-hertz (kHz), or thousand samples per second. For CDs this 44.1kHz.

Bit depth is measured in bits, which is the number of binary digets each sample uses. For CDs this is 16bit.