WHAT'S NEW IN RELEASE 2.2
=========================
- The drivers are at the same level for Win 9x/Me, NT 4.0, and
Win 2K. They have the same functionalities but not
interchangeable.
- Fix for a bug in release 2.1 affecting the non English versions
of Windows related to the TV output switching to NTSC/PAL.
- Fix to re-enable the SCSI support after being disabled in
release 2.1.
- Fix for the playback of different movies, especially from
region 2, such as X-Men, Gladiator, .... We could not test all
movies but the support for ISO and UDF in reading the DVD discs
provide a larger compatibility with movies and DVD-ROM drives.

http://www.sigmadesigns.com/index.htm