[Plugin: Post video players, slideshow albums, photo galleries and music / podcast playlist] Install

When trying to install this plugin directly from the zipped file, WP returns…

“Unpacking the package…

Installing the plugin…

The package could not be installed. No valid plugins were found.

Plugin install failed.”

When uploading the unzipped package into the plugins folder, WP does not display it on the plugins list page.

How do you get this plugin to install?

Thanks

http://wordpress.org/extend/plugins/video-playlist-and-gallery-plugin/