Disk image failed to mount

I try to open the dmg file again and a message says:

"Disk image failed to mount
Image: CS4.dmg
Reason: checksum incorrect "

Please help me out, i'm in mac os x and really facing this issue for first time. Thank you

Hi I have exactly the same problems with a dmg adobe CS4 on my iMac 24" I run the dmg file, I receive an error message that says: "Unable to open disk images vecase of No Mountable File Systems."

Could you find the solutions?

Your dmg you downloaded with the Explorer? If so try another browser. If the disk image contains an application directly usable, simply drag the application on your hard drive. After moving the application on your hard drive, or after installing this application, you can "eject" the disk image was mounted on the desktop and throw .Dmg file. This outline of the use of disk images .Dmg disk images when they are supposed to contain an application.

Try using Disk Utility (Applications: Utilities) to open it. Disk images are files and can be corrupted, it is possible that the file may be damaged enough that it can not be opened. It could simply be that the .Dmg is currupt somehow. ie it was not created properly, download has not completed correctly or completely.

Refer to following helpful threads for you:

http://forums.techarena.in/operating...ms/1270379.htm
http://forums.techarena.in/windows-software/1096937.htm
http://forums.techarena.in/windows-software/1245373.htm

There was a bug on Mac OS 10.3 early career, but on 10.3.9, it should be solved ..?

Try removing the file and folder

The file
-DisqueDur/System/Library/Extension.kextcache
-DisqueDur/System/Library/Caches/apple.com.kernelcaches

Restart the Mac after running a repair disk permissions with Disk Utility. If the problem persists, it will re-install Mac OS 10, with an Archive and Install, do the updates.