Many thanks, Keef, for your kind offer. Alas there seems to be no way of ripping cds within chromebooks, so the external usb drive option won't work.
I rather think it is a player problem, because cds display equally badly whether I use WMP to rip at the library, or use the Amazon autoripped cds.
At present I am simply saving tracks in folders, a separate folder for each work. This works really well because the tracks are grouped as I want them, in alpha sequence, with each symphony or whatever in a separate folder. So each plays in the right sequence and stops at the end, without running on into something else. No player, just the resident file manager.
Thanks for your kindness,
henry