FREE: Species Blu-ray

Audio Commentary: Director Roger Donaldson, Producer Frank Mancuso Jr., Visual Effects Supervisor Richard Edlund, and Creative & Special Make-Up Effects Creator Steve Johnson deliver an informative track that covers a wide swath of material, including the construction of various shots and effects, the work of the cast and crew, shooting locales, Natasha's comfort with the role and appearing nude, and more. For a multi-participant track, this one is balanced and enjoyable. It's not the most engaging ever recorded, but chances are fans will enjoy it a fair bit.
Audio Commentary: Director Roger Donaldson and Actors Michael Madsen and Natasha Henstridge offer up a track that's a little less dry but no less informative. It's a bit more naturally entertaining, and it's nice to hear some of the details of the shoot from the cast's perspective. Both tracks offer drastically different tones, and fans would be wise to give both a listen.
Designing a Hybrid (SD, 15:48): A quality, in-depth look at the film's digital and practical effects.
H.G. Giger at Work (SD, 12:07): A glimpse into and a discussion of Giger's work. Note that the menu screen mistakenly calls Giger "H.G." rather than "H.R."
Previews: A trio of Sony Blu-ray releases.