Installing software on my Mac Air & MBP - installer wont load

Question

Hi all
I am hoping some one is technically savvy enough to help me trouble shoot this problem. I recently purchased a new digital camera and am trying to install the software disc that came with the camera. I unfortunately need to install the software disc so that it loads the necessary files for me to process the raw digital files that came out of the camera so using things like iphoto etc is no good for me.
The issue I have is when I double click the installer it momentarily flashes up and then disappears???? I cannot figure out WHY?? So I have tried to trouble shoot as best as possible. Here is what I have done and results to date.
1. Tried to Install this on my MacBook Pro. Installer flashes up momentarily and disappears?
2. Tried to install this on my Mac Air also running OS X Snow Leopard. Same issue?? So far conclude its not machine related
3. Downloaded another install disc off the internet and tried to run that version. Same ISSUE. So its not issues related to my CD.
4. Stripped out previous versions of the software on my MAC Air to ensure its not causing issues. Same problem
5. Checked online forums and other uses and purchasers of the digital camera ARE able to install the software on their macs!!!
6. Uninstalled every single APP that I have installed on my MAC air and tried to get it back to stock. Try again. Still fail????????
7. Updated the OS X software to ensure everything is up to date.
8. Grabbed the OLD version of the software disc that came with my previous digital camera (same brand) and installed that CD (version 23 - for those familiar with Canon DSLR). that loads up correctly and allows me to install. Version 25 the latest that comes with my new Canon DSLR doesnt load up.
I am stuck !!! I cannot pin point the issue. I dont understand OS X enough to debugg or log what the potential issue is.
I started up the Activity Monitor and watched closely in the my Process specifically for the process that I start up (SetUp)
I noticed that the Setup process name registers. Then another process starts up UniversalInstaller then both of them disappears?????????? and nothing happens in my comp!!!!!
Is there some way for me to debug this ?? look at log file?? enable error logging or has ANY one got any idea what may be the issue???
I've essentially bought a VERY VERY expensive DLSR and I cannot edit my raw files because I cannot install the software!!
HELP ME Please

Answer 1

Downloading as we speak, and the first explanation that comes to mind is that both files have a .rar extension, and that since OS X doesn't support this archive format, you need to install a third-party utility to open them.
One files tool to open .rar files is The Unarchiver (here), and another is Stuffit Expander (there). 7zip also proposes a Mac version (here). All three will decompress a .rar file, and let you access the .dmg file(s) inside.
Also, depending on the browser you're using, and provided you might be inclined to open trusted files directly (I use Opera, and seldom save safe download; I click on "Open" in the download dialogue), your files could very well open... in the browser cache folder, out of sight. But if you use Safari, Chrome or Firefox, and you don't have any utility installed to handle .rar files, that's doubtful. I'm going to open your files now, and check if I can install them.
Stay tuned!
Edit: decompressing the first file using The Unarchiver shows that the archive is "incomplete". Which leads me to think that you might have to concatenate the two files to make one "complete" .dmg file.
If so, once they are decompressed, open a Terminal (in Applications/Utility), then type "cat", and drag both files in the window, one after the other (preferably in the right order...), type a space, then give the final file any name you want, followed by the .dmg file extension:
(e.g.:) "cat /Users/Your_Name/Desktop/File1.dmg /Users/Your_Name/File2.dmg /Users/Your_Name/Desktop/FinalFile.dmg"