For longer elements of sound, like a song, it is a good idea to stream the sound rather than embed it into the Flash movie. This helps to keep your file size and load time down. It also gives you more control over starting and stopping the sound. So, if you want to include a song or a longer element of music/sound in your SWF, stream the sound.
Also, if you are planning to have music/lengthy sound files as part of your blog, it is polite and savvy to give viewers the option of turning the sound off. They may prefer their own music as a soundtrack to your blog. They may also be viewing your blog in a professional or other setting where sound is not appropriate.
Make sure that you have sound files (MP3 and WAV files are great) saved in the same location in which you are going to save your SWF file. There is a sound file in theChapter 5 folder. You can also download songs, loops, and sound effects from a number of different...