iPodDisk is an open-source tool for downloading music from your iPod. That is all the application does, and it takes a whole different approach from other iPod backup solutions out there.
This tool is open-source, but it hasn't really been updated for a bit. I run into a problem when I started it. Apparently, Mac OS X 10.6 didn't exist when it was released, so it didn't support it. I went to the "issues" part of this app's Google Code page and found the solution. You have to edit a line of code with TextEdit and the app starts working again. It is inconvenient, but very easy to do.
Pros
- It is a very nice tool to backup iPods
Cons
- You have to manually modify a file for it to work on Mac OS X's latest version