You can embed music to your PowerPoint like this:
1. Select the First Slide and then Go to INSERT > SOUND FROM FILE...
2. Select the music file and click OKAY.
3. Set the “Automatically"
Once you have inserted the Audio/Music file in your PowerPoint Presentation.
1. Go to ANIMATION > CUSTOM ANIMATION
2. Right click on the audio file from the CUSTOM ANIMATION ( right pane) and select EFFECT OPTIONS...
3. Under START PLAYING, choose "From Beginning" “From last position” or ”From time”
STOP PLAYING, choose " After __ slides " and increase the number of slides to the number of slides in your presentation
4. Click OKAY.
OR
Just use this TUTORIAL:
http://www.dvd-ppt-slideshow.com/powerpoint-knowledge/sound-across-slides.html
If you want do copy it onto a DVD, you can do it like this:
You can convert a PowerPoint presentation to either video or DVD with Moyea PPT to DVD Burner. It can preserve everything from your original PowerPoint to the output video or DVD, including animations, sounds and etc.
The download site: http://www.dvd-ppt-slideshow.com/
There are 3 editions in the PowerPoint to DVD and video converter Family:
the Pro, http://www.dvd-ppt-slideshow.com/ppt_to_dvd/
the Lite, http://www.dvd-ppt-slideshow.com/powerpoint-to-dvd/
and the Edu, http://www.dvd-ppt-slideshow.com/ppt-to-dvd-education/
Choose the one that fits to you.
Then follow the how-to for converting to DVD:
1. Install and run Moyea PPT to DVD Burner. Insert a blank DVD to your PC.
2. Import your PowerPoint file and select the output as Standard DVD or High Definition DVD.
3. Customize details for the output DVD slideshow, like adding logos, sound tracks, and DVD menus for playback on TV. Then click Start to burn the presentation to DVD.
That's it! After conversion, you can take out the DVD and playback on a DVD player attached to TV, needless of a projector!
To convert the presentation to video, change the output option as "Convert to Video".
Hope it can help!