[jason]

In article ,
says...

On 17/07/2018 15:31, wrote:

We all know that value - 44.1kHz. That's precisely 44,100 Hertz, not
44,099 or 44,100.3. Sometimes, even on a newer CD player that
can play back mp3s off a disc, something other than desired, is
heard. !

If you ever find a CD drive raw output that feeds the electronics a
constant sample rate of 44,100Hz, I'll probably faint with shock.

Just a guess.. could the variation be caused by error
correction occurring? The errors might be on the disc or
induced by less-than-superb mechanics in the player.