Worldcup,
As far as the sound quality goes I whole heartedly think the JVC XRCDs sound better. I don't know of any recordings that are covered by both. With or without the HDCD decoder, HDCDjust doesn't sound as good to me. Most likely it is the mastering by JVC. All of the XRCD artisit are from the JVC library which does limit the artists that are available from them. I do like that I hear a remarkably good sound from XRCD without a special decoder chip.
As far as the sound quality goes I whole heartedly think the JVC XRCDs sound better. I don't know of any recordings that are covered by both. With or without the HDCD decoder, HDCDjust doesn't sound as good to me. Most likely it is the mastering by JVC. All of the XRCD artisit are from the JVC library which does limit the artists that are available from them. I do like that I hear a remarkably good sound from XRCD without a special decoder chip.