I have a few DVDs that have no chapters and my Yamaha C961 doesn't return where I left off. Is there some way of correcting this? Is there software I could use that can allow me to create my own chapters on these discs that would al;low my DVD player to return to where I left off?
Well let's see you'd have to buy decryption software and DVD authoring software and rip the discs to your computer and climb the steep learning curve and then re-make them and re-burn them...if you need a new, time-consuming hobby then go for it.
Or you could just buy a new player that works the way you want.