I'm using CS5 on Snow Leopard... MBP Core i5. Sorry!
Is the crash report being generated by Dreamweaver or OSX? And do you get any specific error message?
OS X - I have to Force Quit it. I get the spinning beach ball of death. No specific error message...
Could this be a code rendering issue somehow?
What version of DW?
If you have a file "diffing" tool, then see what the exact differnece between the 2 files is.
Otherwise, can you post a link to one of the files that causes the crash?