You don't check if play2D returns a valid pointer. According to the docs Only returns a pointer to an ISound if the parameters 'track', 'startPaused' or 'enableSoundEffects' have been set to true. Note: if this method returns an ISound as result, you HAVE to call ISound::drop() after you don't need the ISound interface anymore. Otherwise this will cause memory waste. This method also may return 0 altough 'track', 'startPaused' or 'enableSoundEffects' have been set to true, if the sound could not be played.

You don't check if play2D returns a valid pointer. According to the docs Only returns a pointer to an ISound if the parameters 'track', 'startPaused' or 'enableSoundEffects' have been set to true. Note: if this method returns an ISound as result, you HAVE to call ISound::drop() after you don't need the ISound interface anymore. Otherwise this will cause memory waste. This method also may return 0 altough 'track', 'startPaused' or 'enableSoundEffects' have been set to true, if the sound could not be played.