XRCD is not a format. It's a mastering process, or at least the brand name of a mastering process. HDCD is kind of a hybrid, but it does require a decoding chip to gain its full benefits. And its claims to technical superiority (as opposed to just good mastering) are open to challenge.
As "formats," neither will sound better than the other. If there are recordings available in both forms (I don't know of any, but there might be), either might sound better. I'd put my own money on XRCD, however, because JVC does really good mastering.
As "formats," neither will sound better than the other. If there are recordings available in both forms (I don't know of any, but there might be), either might sound better. I'd put my own money on XRCD, however, because JVC does really good mastering.