Arnie's always good fun on commentaries - there's something quite amusing about his voice for a start, and he sounds so full of glee at all the chaos and destruction his on-screen persona is wreaking.

The other participants make very respectable contributions, especially Loken, who comes across as more than just a pretty face,
and the whole track is a solid example of a first-release commentary.
Your enjoyment of the track will probably correlate to your enjoyment of the film. I quite liked both.

I personally found this commentary track very boring. the cast either keeps reciting the on-scren happenings or being all self-congratulatory (Oh, it was SO good working with you). Ah-nuld is a chore to listen to.

I actually really liked this track. It was edited together quite well. Mostow and Danes are the only two who are actually together. Danes doesn't seem too comfortable but Mostow does a good job of asking her questions and this leads to a few good bits of information, including how late in the game she joined the project. Unlike his other commentary outings Arnie actually provides a good deal of information about his character and the filming. He talks quite a bit about certain scenes he fought to have included in the film, the importance of getting into shape for the role, his concerns about certain sequences, etc. Kristanna Loken has some solid information to share about what she did to physically prepare for the role and gives bits of information from the set regarding certain scenes. Really enjoyed her parts. Stahl pops in on occasion, mostly talking about his concern about how to approach certain emotional scenes in action film. All in all, a good listen.

Unusual for a commentary as Mostow sets it up and the participants which is nice. I always find Arnie amusing on commentaries such as when he talks about the pressure of doing the nude scene and making sure he looked the same he did twenty years ago (he looks nothing the same though). Danes is honest about her apprehension and compares her role to that of her characters experience. She also has some good discussion about acting methods in these types of films. Danes seems natural and unrehearsed but intelligent. I found it unusual to have a commentary to come from an acting POV and not come across too much glad handing, although there is a bit of that as other reviews have mentioned. The commentary points out that they had some decent ideas (such as the armor going bad) but they really didn't flesh it out enough for it to work. The track is very well cut between the participants. All in all, a surprisingly entertaining and informative commentary, one of the better actor ones I have heard.

The new visual commentary on the bluray is also quite good. Mostow actually speaks fairly well about the film, and even though some of the cringe moments are laughed off on the track, it's a surprisingly decent mix of information. It's worth it just for the exploding bra! I did hate the moment when Mostow referred to Sarah Connor as a third wheel to this story. The PIP can be distracting sometimes and interesting other times. The information about the ILM research, effects houses, physical vs digital is all interesting though. All in all, it's actually quite a strong commentary.

I opted to listen to the director on his own rather than the cast and director commentary also on the DVD. Jonathan Mostow seems to be really comfortable with chatting. He delves into his admiration for the other terminator films and tells us about the way scenes were shot, budget stories, cast and story annicdotes as well as most other subjects to do with the film. This track is well worth a listen.

Much better than the ensemble commentary. Mostow is pretty chatty so there are no pauses here and he's full of excellent insight as to the hows and whys of the framing and pacing of this movie which will one day eb recognized as a classic in its own right and not just a poor clone of t2.

I would agree with the above reviews only to add that Mostow also comments on the challenge of re-vitalizing the franchise and living up to their legacy. He also dishes anecdotes about working on a big production with a limited amount of time. He comes across as a very personable fellow.

Mostow speaks in a very clear and nice way, but keeps the commentary rather shallow. He's able to impart some interesting information about the visual effects, but for most of the time engages in the usual compliment distribution. Also, his tone has a didactic quality, as if someone had instructed him to gear the commentary to an audience of children. I, for one, would like to listen to someone talk on a commentary about all the different paths the story and the production took until its final version, but then I think that person should be Gale Anne Hurd or other producer.