Late-80's Philips CD Player Disc Errors

I have a made in Belgium Philips CD770 CD Player that I bought new in 1987-88 which has worked perfectly since new... and still does, on older CD's... seems that some, not all, newer CD's are causing it to report a 'disc error' when reading the CD or only on certain tracks of a CD... older CDs in my collection play perfectly.... example: all of my Enya CD's play fine, however the new one which I just recv'd for Xmas will not play at all... Tracy Chapman's original and subsequent CDs are OK up to the new 'Telling Stories' which I can only play tracks 1-4... again, these are not 'skips' but a reported 'disc error' and refusal to play the track(s) at all... I really like this player (currently in my office system) and I believe it has the dual 16-bit Philips TD1541(A) DAC's.. not sure about the transport mechanism number since the case has never been opened and there doesn't seem to be a whole lot if info on this particular model on the web for some reason... anyway, I'm looking for some info here from someone who may have had a similar issue perhaps before I replace this unit (good deals on a NAD T585 universal player to be had at the moment... would this be a good replacement for my older entry-level hi-fi? Adcom GFA535/GTP400/Polk Audio Monitor 5b's) Thanks in advance.