These sermons are stored as MP3 files. To play them you must have an MP3 player such as WinAmp, Windows Media Player, or QuickTime Player installed on your computer. Left clicking on the sermon date will download the file and play it as it downloads if your have MP3 files associated with an MP3 player and have DSL or a cable modem. If you have a slower modem, you can right click on the sermon date, and download the file to your computer and store it on your hard drive, then play it later with one of the MP3 players.
The files are around 25 to 30 Megabytes, so it will take several minutes to download the complete file using DSL or Cable modems and probably an hour or more on a 56 kbps modem.