Reported here are results of both theoretical and experimental studies of the phase-change recording media Tex(InySe1-y)1-αsystem. Using TeSeln thin film corresponding to the composition of the euteotio region (x = 0.7, y = 0.2-0.5), erasing time of 10μs, the contrase ratio of 0.23 and more than 105 reversible cycling have been obtained.