CD is a standard (like MIDI which was established in 1984) that was agreed upon by Philips and Sony (any others?) to make sure the CDs they produced would play in any machine and any machine would play any CD.
This agreement created the Red Book Standard of bit depth of 16 bit and a sample rate of 44.1KHz.
The bit depth is a binary number or word 16 binary digits long. With greater bit depth you get greater signal to noise ratio (louder recording = quieter signal) but any Stereo audio file done at 24 bit will not be Red Book Standard and therfore will not play on most CD players.
Sample rate of 44.1KHz means the recording device is taking "sound photographs" with a word length of 16 bit at a rate of 44,100 photos each second. As with bit depth, greater sample rate means changes to the audio, in this case greater sample rate = greater frequency response. 44.1KHz equates to approximately 20Hz - 20KHz (20,000Hz).
To make sure your CDs don't have glitches and play on any machine, you need to ensure the burning software creates Red Book Standard CDs.
Also Ensure that your CDs are of the best quality you can afford (I once (and once only) had these imitation CDs and they wouldn't play anywhere, but the burner and software were the same.
AND, of course, BURN AT NO MORE THAN 2X speed (1X is better).
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