If you have worked with digital audio a bit you have probably heard the terms bit depth and bitrate. Bit depth is the number of pieces of information recorded for each sample of audio. (Wikipedia). CD-quality audio is recorded at 16 bits, which corresponds to 44.1 kHz. DVD-quality audio can be recorded at up to 24 bits. A larger bit depth results in a more accurate conversion from analog sound. Bitrate is the amount of data needed to transmit an audio file. 16/44 audio is roughly 1.4 Mbps (megabits per second).