1) Nothing unless you own an
HD DVD drive
2) If you want the HD version, you will pay for an upgrade
3) Possibly, but, nothing has been announced. At this time it's HD DVD only
4) That's correct
Please note, though, that if you have no interest in the HD version, your current license for
AnyDVD will continue to work as it always has. The HD functions will be disabled, but, you'll still continue to get updates for life. Hope this helps!