If you have bought songs in iTunes and want to play it in your Palm or other devices (in my case using PocketTunes for my Palm LifeDrive) and need a mp3 format to do it, here are some ways to do it.
Use Audacity, an OpenSource software to convert it
Try this method:
1. From your iTunes, burn the CD of the songs you purchased using the iTunes preference Disc Format: Audio CD. Just go to Edit -> Preference -> Advanced -> Burning. Note: iTunes will not allow you to burn MP3 CD for songs you bought. To Burn CD, just click on the Burn Disc icon
2. Use your mp3 ripping software, in my case, I used, Windows Media player. Click on the Rip tab. Right click the Rip tab and a pop up menu comes up. Choose Tools -> Options . From Options, click on Rip Music. Under Rip Settings, Format choose: mp3.
3. Rip the songs you bought and burned to the Audio CD. The songs converted to mp3 format will be created in the directory as specified in your preferences directory in Windows Media Player. Media Player created a subdirectory under this called Unknown Artist\Unknown Album (Date TimeStamp), e.g. D:\myhomedirectory\My Music\Unknown Artist\Unknown Album (5-13-2006 10-58-55 AM)
4. Transfer your mp3 files to your non-iPod MP3 player, in my case the LifeDrive
Enjoy!