I am trying to use http://code.google.com/p/amazon-s3-php-class/ to force-dowload files from AWS S3. I have an mp3 that I want people to \"play\" or \"download.\" By default
I never tried Amazon's S3 hosting, but don't you have access to using .htaccess files there? Then you can set Content-Type and Content-Disposition for an entire directory with this entry:
ForceType audio/mpeg
Header set Content-Disposition attachment