17. A method comprising: accessing an electronic document data file including dynamic content and organized according to a page descriptive format, the dynamic content comprising a media content that changes state over time, wherein the media content comprises scripted content, the page descriptive format being a device-independent and display resolution-independent fixed-layout document format; accessing opaque state information stored in the electronic document data file and associated with a state selected from a plurality of states associated with the dynamic content, wherein the selected state comprises content elements that are customized based on user input, and wherein the selected state is associated with a comment added to the media content, the comment being directed to the selected state, and wherein the opaque state information comprises frame information associated with the media content; and in response to receiving an indication to access the comment, recreating the selected state of the media content to which the comment is directed from the electronic document data file using the opaque state information.
17. A method comprising: accessing an electronic document data file including dynamic content and organized according to a page descriptive format, the dynamic content comprising a media content that changes state over time, wherein the media content comprises scripted content, the page descriptive format being a device-independent and display resolution-independent fixed-layout document format; accessing opaque state information stored in the electronic document data file and associated with a state selected from a plurality of states associated with the dynamic content, wherein the selected state comprises content elements that are customized based on user input, and wherein the selected state is associated with a comment added to the media content, the comment being directed to the selected state, and wherein the opaque state information comprises frame information associated with the media content; and in response to receiving an indication to access the comment, recreating the selected state of the media content to which the comment is directed from the electronic document data file using the opaque state information. 18. The method of claim 17 , further comprising: rendering the electronic document data file including the dynamic content on a display.