The manual is available as a pdf file on the HHB web site, it doesn't rule out DSD ("other supported sound files" burned to CD or DVD might, or might not, be covered) but I can't find anything there about DSD formats other than SuperAudio CD. The S/N ratio is given once as 96 dB (16 bit) and once as 100 dB, so it doesn't look hopeful.
Jeff