Hi, Shan! Thanks for asking!
I have a Sony DVP-NC615 Five-Disc Fossil circa 2002; by the time DH and I got it in December 2002 (on sale) it was already outdated. The Sony brand continues to update itself, as do the other Gizmo Giants. I think a lot of other Cathe-ites with multi-disc changers have Toshiba brands. My Sony has never failed me. I do not know at all how to program workouts using their (unintelligible) manual, but I do know how to mark sections in each disc to start when I want them to (even mid-chapter) so that I can hemstitch each workout that day.
I think someone on the Video Discussion forum mentioned she has a 400-(that is not a typo)disc player.
Ohhhhhhhhhh . . . the mish-moshes I could do with that . . .
a-Jock