You can play multimedia files on a page or activate them from a link, bookmark, form field, or page action. Each file has a play area that you can use to activate the media. The play area is usually displayed as an image or a rectangle on the PDF page, but it can also be invisible.
Acrobat and Reader allow you to play legacy multimedia files, like QuickTime, MPEG, ASF, RAM, and Windows® Media files, that were created with an older version of Acrobat. However, you can't create legacy multimedia files using Acrobat and Reader X.