the Advanced menu is mostly about editing Meta Data
Get CD Tracks from…"
Submit CD Tracks to…"
Convert Selection To…"
This will re-encode your selected song(s) into the format specified. To Specify the format, go to Preferences->Importing, and select your Encoder and/or Preset.
Swap… and changing Case
Should be self-explanatory. The difference between "Capital Case" and "Title Case" is that Capital Case will capitalize every word, while the other won't capitalize words that probably don't need it.
Re-Link to Files
i know i need to fill this section in