dbpoweramp is fantastic and a lot more robust. can go back and forth between and number of diff file types as is, and it supports plugins for additional file types. (I have added plugins to successfully convert ape, ogg, musepack, and a few others). Great program for any serious music downloader.
It is a retail program that provides a free trial period. In order to continue after that you need to
b) sail the high seas in a boat with a skull and crossbones
Plugins and the like are available here: http://www.mininova.org/search/?search=dbpoweramp
appears to be the best. comes packaged with plugins, is both well seeded and well reviewed, and the trial period is already "negotiated",