Is there a way to place a link in the menu that leads to a pictures folder?
I searched on the Internet but I didn't find it, even if it seems strange to me that Encore doesn't have such feature.
You may place computer content in the ROM area (read the manual) but since Encore is made to use the DVD specification, and the DVD specification does not include computer content, there is no way to create a link to that computer content
The best you can do is put up a message (title) telling people that taking the DVD to a computer will allow them to view computer content
Or use Macromedia Director http://www.adobe.com/products/director/ for mixed content
CS5 User Guide - Right click PDF link to save to your computer