Relationship with Sister

I need suggestions on how to handle a situation or understand my older sister’s actions.
Our last surviving parent died 32 yrs ago. At that time she insisted on keeping family albums and promised to make me copies.
Since that time, I have politely asked for the copies, offered to pick up the albums and make the copies, sent monies for the cost of the copies all to no avail.
Granted we do not social, even during the holidays since we have nothing in common, but to my knowledge there has never been any big blow up of a fight to have her act this way.
Over the years she has promised she will get to it, but at the time always has an excuse from being ill, her family ill, or just having surgery. Granted things do happen in life from time to time, but for 32 years worth.
I, at one point even thought maybe I was adopted (not true through verification) and that was her reason for not sending them, since I do not want to think that she is that cruel to deny someone pictures of not only their youth, but pictures of my children with their grandparents which are the only copies.
At the start of this year, I made one more plea via letter asking for her compassion in this issue - but to date no reply.
What else can I do?

Reported.

They seem to give her power over you and maybe she enjoys it.
Or maybe she threw them in the trash and doesn’t want to fess up.

Why not visit her and make copies while there. Many places have scrap-booking stores that could help.

Sure she may live a few thousand miles away, but you seem to need closure on this.