If user presses long the audio stream chnage button ('A') it is possible that DVD playback loses the audio as long until the DVD is restarted.

h4. Steps to Reproduce
1) Start DVD with multiple audio tracks available
2) Press the 'A' button for couple of seconds

as a result audio is lost (audio renderer sees end of stream event).

h4. Additional Information
2010-09-08 21:43:21.276000 [ERROR][MPMain(1)]: DVDPlayer:Failed to set audiostream to 0 with error code:-2147220900
2010-09-08 21:43:21.279000 [ERROR][MPMain(1)]: DVDPlayer:Failed to set audiostream to 1 with error code:-2147220900
2010-09-08 21:43:21.282000 [ERROR][MPMain(1)]: DVDPlayer:Failed to set audiostream to 2 with error code:1