RE: Kelley....
Okay, I looked at the book. The Conditioned Memory is used for setting up audio functions, etc. for a certain disc. It will remember which audio functions you have selected (I never change these things) for up to, I think, 5 DVDs. Even if these DVDs are removed from the player, it will remember when loaded back in. I'll probably never use this function.
The Last Memory function could come in handy. For example, I want to do the warmup from Kick, Punch, and Crunch, insert something from another disc, and then go back to Kick, Punch, and Crunch. You press Last Memory after the warmup and the player remembers where you were on this particular disc. You can remove the disc, turn off the player, or go to another disc. You then come back to the original disc and press Last Memory again and it will resume play at the point where you stopped. Very nice feature if you don't want to use the Program feature.
The Program feature allows you to program a workup with, I think, up to 24 chapters. It will stay in memory even if the discs are removed. Of course the discs need to be put back in the same slots or you'll end up with a totally different workout. I don't use this function very often as it takes a lot of time to program a workout.
I hope all that helps.