Ayre Cx-7e issue

I was reading somewhere that an owner was having a problem with the Ayre reading some of his discs. After several go rounds with Ayre if I remember correctly the problem still persisted. I have a Cx-7e and it seems to have the same problem. On discs under 55-60 minutes all is well. On discs over this threshold the machine will stutter, open the drawer and then turn itself off. If this happened on a CD with 12 tracks and it happens on 11 if I go back and manually put in track 12 it will play, but if I go to 10 then 11 will reject? This occurs on several discs and I assume is not disc related. Very strange, any ideas what might be the problem? Anyone else having similar problems? or where the thread with the person who did have a similar problem might be found. Thank you