According to the Codex:
Store uploads in this folder – Enter the folder (directory) to where you want to upload files with the Administration > Posts > Add New Upload function. You must enter a folder relative to your WordPress address (URI) folder. WordPress suggests an upload directory of wp-content/uploads. Use the suggestion, or modify it to a relative path of your choice. If your wp-content folder is writeable, WordPress will automatically create this folder when you do the first upload using the Administration > Posts > Add New Upload function.
Full URL path to files (optional) – Enter a URL path to your uploaded files. This is optional only if the setting ‘Store uploads in this folder’ remains at its default value of wp-content/uploads. Otherwise it must include the full path to the upload file directory that a browser would see.
http://codex.wordpress.org/Settings_Media_Screen
Thread Starter
SK
(@sooskriszta)
Thanks Zoonini!
So does this mean that if I want browsers to access my images from a subdomain, but don’t want to physically move the files, then I can just point the subdomain (e.g. media.domain.com) to the WordPress upload directory (e.g. http://www.domain.com/wp-content/uploads) and
1) I do not change Store uploads in this folder
2) I change Full URL path to files to http://media.domain.com
I’m really not sure how this would work with subdomains. My best suggestion would be to test it.