Whenever I export my 1080p video to MPEG 2 DVD preset for HD widescreen progressive, Adobe Encoder opens, but it never shows a file and never renders anything. I can export directly out of Premiere, however? What's happening?
You either export to dvd which is 720x576/480.
or BluRay disk 1920x1080 interlaced.
There is a way to get HD on a dvd disk but that is about 20 minutes.
Make a BD iso in Encore and burn that iso with e.g. Nero as an image to dvd.
You do need a BD player to play this dvd disk and it does not play on all BD-players.
Whenever I export my 1080p video to MPEG 2 DVD preset for HD widescreen progressive,
Ann and Oldalf are responding to your including "HD" as your export. If you accept the MPEG2-DVD presets, it will not be HD; it will be DVD compliant SD. I can be widescreen.