A lot of new features, some important fixes, highly recommended to check it out:

http://sandbox.slysoft.com/beta/SetupAnyDVD6403.exe

6.4.0.3 2008 03 26
- New (Blu-ray): Added support for new version of BD+ as found on
"Hitman", Region A, US
- New (DVD): Added support for a new type of structural protection as
found on "Reservation Road", R1, US (untested, awaiting feedback)
- New (DVD): Added support for a new type of structural protection as
found on "Der Perfekte Sex", R2, Germany
- New (DVD): AnyDVD ripper can now be started multiple times
- New: Settings can be changed while rip is in progress.
Setting changes will be ignored for drives currently ripping.
- New (Setup): AnyDVD can now be installed without a reboot (2000/XP/Vista)
- Fix (Blu-ray): Small visible glitches (1-2 frames per movie) on BD+
protected discs
- Fix (DVD): AnyDVD ripper didn't handle some discs properly under Vista