You indicate that most photos will open with Preview. Are those
files .jpg or .swf? Are the only ones that won't open .swf files?
If so, then as sig mentioned, the .swf files are likely to be slideshows
and therefore not required.
If all the files are in one folder, select all files (command-A) then
open them all (command-O) and make a note of which ones will
not open. If they are all the .swf files then I suspect you can
safely ignore them.
Dave
As an afterthought, try opening the .swf files in a browser.
Message was edited by: dbsneddon