Can I ask how you know this and who Arista have used to make their films in the past and currently. Not a challenge - just curious about it.
pentaxuser
Here is what I have heard since I have been back in photography over the past ten years or so:
The original Arista film (I think that it was the original) 125 and 400 was Ilford FP4+ and HP5+. This was well established and I think Simon Galley from Ilford confirmed it. Ilford no longer rebrands their products and these films went away a few years back, around the time Ilford was reorganized.
Arista EDU was Forte, I think it went away with Forte, but Forte might have stopped selling it to Freestyle before they went under. This one was pretty clear since they marked the packages Made in Hungary and there weren't any other factories there. Also, it had the characteristics of Forte.
Arista EDU Ultra was introduced to replace the original EDU. It is Foma. This is also very well established, they advertise it was made in the Czech Republic, and I think that there are not other suppliers there.
Arista Premium is Kodak. The 100 speed is Plus-X and the 400 speed is Tri-X. This appears to have been discontinued and they are selling the remaining stock. (I am not totally sure it is discontinued, I think that this is a rumor at this time.) Again, it is made in USA and what other possibilities are there? Also, many have used it and reported it as Plus-X and Tri-X.
There was a Japanese made Freestyle or Arista product, not sure what exact film it was, but again, made in Japan can only really mean it was Fuji.
Also, Freestyle got a mess of 35mm Agfa APX toward the end of Agfa Photo and sold it as Freestyle Private Reserve.
In response to Jerry, one thing that Freestyle has not done since I have been buying from them is change a product or supplier without changing the name to make it clear it was a different product. I think it is an unfair criticism of Freestyle to imply that they will change the manufacturer of a film and not let folks know. When Forte ceased production and they started with Foma, they changed the name from EDU to EDU Ultra. It was very clear that this had happened. They did have both products available at the same time and made it very clear which was which.
As for quality, yes, I find that the quality of Kodak, Ilford and Fuji (and Agfa back in the day) is much better than other brands and I tend to stick to them as well. I am currently using Arista EDU Ultra 4X5 film, as I have just gotten back into it and want to get all of the wrinkles worked out with a cheaper film, but I have a feeling I will be back with Ilford or Kodak soon.