When I try to open the EOS digital solution disk ver 24.1 for my new Canon Rebel T3i camera on my Mac 10.5.8 a notice "this software is not supported by the CPU you are using" comes up
You need to contact Canon - or read the software specs - it sounds like the software you got form them is not supported by your computer
Do I need this software?
Probably not - exactly what about it do you want?
Can I just download the pictures to my Mac without using the Canon software?
Probably - if you are shooting JPEG - launch iPhoto and in the iPhoto preferences set action when a camera is connected to launch iPhoto and connect your camera - iPhoto should launch and you should be able to import
Some cameras need to be set to mass storage mode - read your camera manual for details and procedures
If you are using RAW then your camera needs to be on this list and you need the versions of software noted - http://support.apple.com/kb/HT4757 - for older OS versions you can use google to find the list of supported cameras
LN
