Get a Plug-In What do you need? Acrobat Reader allows you to view PDF files. Real Player allows you to hear Real Audio (ra) and see Real Video (rm) files. Quick Time lets you play Quick Time movies, as well as audio and video files formatted in AVI, MOV, AIFF, and WAV. Windows Media Player is for Microsoft/Internet Explorer users. When did you last upgrade your browser? Click on either Netscape of Internet Explorer to get the latest version. Note: After you download and install a plug-in, you'll need to restart your computer.