http://www.kodak.com/global/en/prof...eadyloadMain.jhtml?id=0.2.22.14.13.24.5&lc=en
Unfortunately only one Portra film on the current list. The problem with the silver pressure plate holder is that it could cause some reflection onto the film, which at the least reduces contrast, and at the worst would way over-expose the film. The black pressure plate is what you want. If you look at the front of the holder, and the work "Kodak" is in red, you probably have a black pressure plate holder. This is an easy check you can do when looking at used holders on EBAY.
The Fuji Quickload holder works fine with Kodak Readyload films. Just make sure not to get the film packet inserted backwards, or you could cause a jamb. If a film gets stuck, don't force it; expect the need to pull the holder apart.
I suggest when you get some film to waste one film packet. In daylight, with the holder out of the camera, try to install the film, move the packet sleeve, re-insert the packet sleeve, then press the release button and pull the complete packet out of the holder. Try it a few times, then it should seem easy.
There are some nice instructions on that Kodak link above. It is common for many camera stores and film places to not carry Kodak Readyloads, nor Fuji Quickloads. Many places do not want to carry these films because they cost more. Often these are used by professionals, who likely place large orders through mail order or internet.
You can also find these films in short dated, or recently expired unopened boxes on EBAY. The discount can be substantial over buying the films new. Even six months out of date is not a bad choice. Once you get use to using these, then consider buying new boxes of film.
Ciao!
Gordon Moat
A G Studio