Depends on what you mean by best. If the sound is, or can be converted to,
a WAV file, then you can use Insert>Sound>From File to insert it, and it
can be embedded in the file, so you don't have to worry about having the
sound and the PowerPoint separated.
--David
--
David M. Marcovitz
Microsoft PowerPoint MVP
Director of Graduate Programs in Educational Technology
Loyola College in Maryland
Author of _Powerful PowerPoint for Educators_ http://www.PowerfulPowerPoint.com/