I translated the key points:
It's a pre-installed software that will convert, in real time, normal 44.1/16bit CD source to DSD for play back (requires Core2 Duo 2GHz or better for this functionality). This Vaio model has a " Sound Reality " audio chip, capable of 107dB S/N, does 192/24 and supports DSD recording and playback. Using the package software "SonicStage Mastering Studio", any WAV file can also be converted to DSD.
In normal CD recording processing, analog sound is passed through ADC. Using the 1-bit decimation digital filter, sound coming into the ADC front end is convereted to 44.1/16 PCM signals. In play back, interpolation digital filter in the DAC is used to convert the sound back to analog. Between these two filters, some losses and computational errors can result, impacting the sound quality. Because SACD/DSD uses only a low-pass filter in the final DAC, it effectively bypasses the play-back digital filteration.
In "DSD Direct Player", PCM signals are converted to DSD directly, and bypasses the output DAC. This results in elimination of computational mismatch and minimizes the filter-related losses.
Projected pricing: 290000~350000 yens.