I just had my local A/V shop update the firmware on my 94, it had never been done since I bought it in 2007. Advantages already have appeared with fewer issues on 7.1 blu-ray playback. Two films, Super 8 (which exhibited rapid fluctuation of content between the front L and R speakers) and Fast Company (which had breakup and crackling during loud drag race audio) now are playing perfectly.
One item which has remained the same is that 3 or 4 of the Home Media Gallery selections are no longer available. Has anyone noticed an upgrade of the HMG as part of the firmware updates?