Adding music to powerpoint slide presentation

[littlestuart5]

I have created a presentation of about 150 slides. I am trying to add 4
songs to these slides so that they will play continually one song after
another. So far I can only get 1 song to show up and when my presentation
changes from one slide to another the music starts over again. I am using
Powerpoint 2007, anybody know how to cure my problems? I want the slides to
play with the music playing without interuptions.

 

[Bob I]

Looking up Background Music in Powerpoint Help retrieved this link
http://www.pptalchemy.co.uk/keep_playing.html