That looks like "pipe delimited", which uses the vertical bar (pipe) character to separate fields. The vertical bar character is the one above the backslash on my keyboard. This one: |
I suppose pipe delimited might be useful for songs, artists, albums, etc that have commas embedded in them. Because then a CSV file (comma separated) would be incorrectly delimited unless the software exporting *and* importing understands how to escape embedded commas. For example a song name called, "The good, the bad, and the ugly".
Itunes seems to get around this by using the Tab character as a delimiter. It's probably far less likely for a song, album, or artist to have a tab in their text. Pipe characters seem equally unlikely to be in the actual fields being exported.
Brian.