One might assume that it'd be easy to forget a device that was introduced way back at the front end of this year, but for HTPC owners looking for a reliable way to bitstream Dolby TrueHD and DTS-HD Master Audio via HDMI, this one would be impossible to shake from the memory bank. Reportedly, the card went on sale (at least in some parts of the globe) this September, but early adopters were deeply saddened by the unit's inability to bitstream. Thankfully, ASUS has heard the weeping, and it has conjured up new drivers (and the Xonar HDAV1.3 HDMI Deluxe) in order to remedy the issue. The crew at TweakTown was able to video a live demonstration in Taiwan, and they came away emphatically impressed. Shoot on down to the read link for a look at what they found.
Source : http://www.engadgethd.com/