Ripping NASes
Tranquil PC AVA RS3
The AVA RS3 combines a 2 Bay NAS, Twonky Media Server, and built-in CD-ROM drive for ripping.
http://www.tranquilpc-shop.co.uk/acatalog/Music_Servers.html#a76
The AVA RS3 is based on Windows Home Server, and comes with Microsoft's back-up technology.
dBpoweramp Ripper
2 drive NAS in a slick looking case based on Windows Home Server and dBpoweramp's ripping software. Not available yet as of 09/08. Claims Upnp Media Server. However, it's unclear as too which one this is. Web site:
http://forum.dbpoweramp.com/showthread.php?s=f89a262f4eaa2a9e6eca1b7e1808d33b&t=17151
RipServer
2 Bay NAS, with Twonky Media Server pre-installed, and built-in CD-ROM drive for ripping.
http://www.ripfactory.com/ripserver.html
Supports RAID 1.