What?
dB is a measure of relative power. Double the power, increase the dB by 3.
Years of empirical testing - real people, real ears - have established that a 3dB change in power causes the smallest change in volume that most people can detect. 10dB approximately doubles the perceived volume.
As an aside, dBv is a measure of the ratio of voltages and is commonly used when the signal is measured in voltage, since it is independent of output impedance. It's numerically twice as large as the equivalent power dB measurement. On a digital representation of such a signal, each bit of the binary value is equivalent to 6dBv; since a CD uses 16-bit linear PCM it has a theoretical maximum dynamic range of 96dB - which cannot be practically achieved for other reasons. Where your 136dB came from I don't know - but you should probably change your software for something that works.
CD players have internal software to correct for errors and missing bits in the data stream, but they should never perform any other processing; what comes out should be as close a duplicate of what went in as the condition of the medium provides.