The Region 1 version of this disc was released a few months earlier. It is quite similar to this one, but there are a few differences — my guess is that there wasn't quite enough space on the Region 4 disc, because the PAL version of the film takes up more room. Both versions are on two discs in an Amaray case (the R4 case is transparent, the R1 is a black Amaray). Both have an attractive holographic slip cover (the R4 version has a small cutout where the security blob may be inserted). Both have a brilliant transfer (there's a lot to be said for a direct digital transfer).
The Region 4 version is missing:
The Region 1 version is missing:
Note that some of the extras appear on disc 1 of the Region 1 package, but are on disc 2 of the Region 4 package: the behind-the-scenes documentary Making Nemo, and the Design Gallery.
Early copies of the Region 4 edition will include a slip for a holiday competition, and a sticker book.
If you have to have a full-screen version of the film, then the Region 1 version is your only choice. If a full-screen version is not high on your list, then maybe the dts soundtrack will be the decider? It certainly is an impressive dts soundtrack. I like it so much that I'm giving the win (barely) to the Region 4.