Someday, if I ever get the time (seems to be in short supply these days), I plan on dubbing some hi-res DVD-A and SACD stereo tracks to a recordable CD. Then, play the original source and the recording back simultaneously, volume matched to provide a good A/B comparison. This seems about the best way to compare the difference between the formats, as we can't rely on the recording companies to provide us with equivalent recordings in various formats.

Sure, there should be an expected degradation of the signal due to the reconversion of the analog signal back to digital (for recording), then back to analog again during playback, but will that be more severe than the supposed "graininess" of the PCM format as described by vinyl afficionados? I anticipate that there really won't be a big difference, but I think it will be a good experiment. Has anyone tried this yet?