All I'll say on this is if you want a high end rice cooker and you want it to last (for the lining to stay intact) don't use it to cook other things. Doing so will severely shorten your cooker's life span.

I used to do all kinds of things using the multi features of an old Sanyo made for the European market. It took about a year for the inner lining of the removable pot to start to mottle and degrade.
Just over three years ago we were in Yodobashi Camera in Akihabara in the rice cooker section and had a very involved and worthwhile conversation with Toshiba's representative there (my husband did the translating).
Her advice included:
Never wash rice using the cooking pot.
Don't use it for other foods except for rice. Avoid oil in particular.
If you want to extend the life of the pot to its maximum, avoid brown rice too (Haiga rice seems like a sensible compromise to me)
Alas, we couldn't afford Toshiba's offering, we did get a 3 cup UK compatible Zojirushi and have been using it ever since on a daily basis, often twice a day.
Following Toshiba's advice (with the occasional detour, we occasionally cook millet or quinoa or add them to rice) - our rice cooker looks like new, the lining is completely intact.

Sure, I miss being able to make takikomi gohan in the rice cooker, but I don't miss having to buy replacement parts every year. Monsieur Le Creuset compensates for Zojirushi San's limitations admirably - they make a great team!