Good luck. Are they the same DVDs that the N2 uses? Try getting a DVD from an N2 and seeing if they have the same files. What is the process to upload a jpeg to the N2?
If you do a backup of a D1 DVD will it still work? So if you add files can they be read in the D1?
A long process but it may at least tell us if its possible..if we can get a file from the N2 that has been encoded into this .pim format from the .jpeg format, put it on the D1 dvd, will it be able to see it?