Is the demo that was available through the Heavy Rain ARG last week different than the demo that was released today? Because the demo that was available last week was 1754 MB and today's Heavy Rain demo in the psn store is only 1384 MB.

So are they different? 

I don't know. However, it's my understanding it's a process to get a demo together for public play. I couldn't imagine the developers making two totally different demos. If they did, that would be weird.

The demo I downloaded (I'm from the UK, thus using the EU PSN Store) was 1754mb in size and consisted of a tutorial section, interviewing a prostitute under the role of Scott Shelby and investigating the crime scene of one of the murder victims as Norman Jayden. From what I gather it is the full demo that was available to those people that managed to get early access to the demo some days ago :)

Well if it's the same demo, what could possibly be over 400 MB big that could've gotten cut but was not noticed to be gone? 

" The demo I downloaded (I'm from the UK, thus using the EU PSN Store) was 1754mb in size and consisted of a tutorial section, interviewing a prostitute under the role of Scott Shelby and investigating the crime scene of one of the murder victims as Norman Jayden. From what I gather it is the full demo that was available to those people that managed to get early access to the demo some days ago :) "