My experiment

[spalmer at mail.mdanderson.org]

>I would check the "MaxLength" property in the SoundOut object and make
>sure that it is long enough (I think the default is 5000 milliseconds).
>You might just try making it arbitrarily long to make sure that's not the
>problem, even if you think your sound is shorter than that.

I had the same problem with a sound file recently, and setting MaxLength to a
very long interval did the trick.

-- Steve P.