Scratchy distortion on last tracks of CD

I have an ASV CD of Gordon Ferus-Thompson doing Ravel's piano music. I've had it for several years, and it has played just fine in the past. I happened to play it today, and in the last couple of tracks, there was a crackly scratchy distortion to the piano sound. At first, I thought it was a noisy tube (which gives you an idea of the sound), but I tried it on a different CD player and got the same effect. The first 10+ tracks play fine--it's just the last 2 or 3 that are a problem. (Unfortunately, this CD can only be replaced, if at all, via a rather pricey special order import.)

Anybody have any clue what is going on with this CD, and whether there is any repair that can be done? I should add that there is no visible clue that I can see that would explain this oddity. (I do recollect that some years ago there was a problem with a particular pressing plant in the UK. I think it had something to do with a deteriorating reflective coating on certain of the CDs made at this plant. I had a few of those CDs, and you could see the deterioration, which caused a coppery discoloration. That is not apparent here.)

Many thanks