Windows Media Player and iTunes (and I think Winamp) use CDDB, a commercial and slightly more reliable source for tags. Media Monkey and EAC are both good for that, though not for the very newest albums because they use the user-generated Freedb online database, and some volunteer somewhere has to do the tags. What you want in a ripper, however, is something that will also go online and get the tag information as it rips.
Media Coder converts between many filetypes.