I'm quite sure that she can only convert one ticket at a time. That is that if she takes one ticket she can convert it to one new one day hopper ticket. And then do the same for each ticket. I don't think she can make one new 4 day hopper out of the 4 tickets.
You can go to allearsnet.com and look for more info. in the ticket FAQs.
http://www.allearsnet.com/pl/ticket.htm
This is a couple of FAQ that was asked: I have some old passes with leftover days that say they are only valid for entry to the Magic Kingdom and Epcot. Are those still good?
Yes. Have them converted to the magnetic strip ticket and you can still use them. Oh by the way, once you do the conversion your days can be used at any of the four major parks now.
How do I go about using the left over day on a really old 1980's five day park hopper? I know I have to transfer it to the currently used media form. My question is can I apply it to another park hopper and get a discount? Or would it be easier just to use the day as is and buy another pass?
Since 2006, you have only one option: ticket media conversion for old pre-1996 passes so you can use up the remaining admissions.
By converting your tickets to the current magnetic strip ticket media, you pay nothing and allow for the ease of use with the new magnetic strip reading turnstiles. Your magnetic strip passes can also be used in the FastPass machines. This allows everyone with any days left on their old WDW tickets to use them. You can convert these passes at any major park ticket booth or Guest Relations window (including water parks) at no charge. Once converted, the new tickets you get will be good at all four Disney Theme Parks.
