1)
Nero and roxio have tools to compile picture discs. Not sure the leave the format as .jpg, but can use them to make you compilation disk......cutsy features and all.
2) No idea, not going to bullshit ya.
3) To watch them on you pc.....make a data DVD, for set top playback, you need to convert each movie back to dvd format then creat a custom dvd ifthere is room on the disk, if you search tutorials, chickenman has some great ones, others can be found at doom9.org....
Hope this helps....