Lyrics
From Winamp iPod plugin ml_iPod
Many do not know this... but you can have your iPod display text related to a song. Apple officially say this feature is used to display the lyrics for a currently playing song. But the "lyrics" text can be used to display anything on the iPod, e.g. the album review to the album the song is associated with, or your personal annotations to a song. Whatever you want to show on the iPod.
It will be shown after pressing the center buttun several time, right after the fullscreen cover art.
To sum it up: If an MP3 file has embedded 'lyrics', they will be shown on the iPod. ml_iPod detects this automatically and sets the appropriate bits in the database on the iPod.
Technical details
This works for MP3 files only with ml_ipod (at the moment).
The text must be stored in an ID3v2 frame called USLT (="unsynchronized lyrics text"). Depending on your tagging program, this is called "Unsynced lyrics", "UNSYNCLYRICS", "Non-Synchronized Lyrics" etc. You have to find out how to convince your tagging tools to write the text into the "USLT" frame.
AAC: Sorry, lyrics embedded inside *.m4a files do not work with ml_iPod, only MP3 is supported.
Tagging Tools
There is no way to write this information inside Winamp (as far as I know). You will need to use some other tool, e.g.
There are tons of other MP3 tagging tools available, see e.g. snapfiles
