Lectora 9 and Sound Forge 10 - using wma for events

I was editing an old course today and it was using "comments" in wma v9 audio files to trigger events. I have recently upgraded to Sound Forge 10 and I see now that I can only save wma's as version 11. Anyone know what I would need to do to get Sound Forge to save as wma v 9 or even 8? I'm using Windows 7 OS.


Thanks.

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