be sure you add your file extentions.... .jpg,.gif,.wma,.psd,....etc. ALL image files WITH the proper extensions ARE cross platform and should be able to be viewed by anyone with a simple graphics program...even explorer. .psd, .ai (and those corel files) are a different story... these sometimes will not be viewable by software that cannot read files with multiple layers. BUT...QUICKTIME will open everything. even layered files...for me at least.