Tip - Convert WMA from Windows Media Player into MP3 files? - Ask Dave Taylor

I'm definitely going crazy here. I have a ton of CDs that I've ripped with Windows Media Player 10, but they're all apparently in WMA format, not the MP3 format that my new Sony Playstation Portable (PSP) needs for me to listen to them. I checked and there's no "save as" capability in WMP, so how the heck do I fix this problem?