The effect of hydrostatic pressures up to 500 MPa on the position of the 1616cm(-1) Raman line of amorphous, randomly oriented poly(ethylene terephthalate) has been studied. The shift varies linearly with pressure, with a sensitivity of 5.6+/-0.3cm(-1) GPa(-1). This value is in excellent agreement with the value of 6.4+/-1.4 cm(-1) GPa(-1) recently deduced from measurements of the sensitivity of the position to tensile stress for four combinations of polarization directions of incident and scattered light.