You can't.
Apple are evil like that...
Convert them first. if the songs format is not right, you have to convert first.
I-tunes is your answer. It is a system independent software.
The best way to transfer your music from your iPod to your PC is with a USB cord. You can also transfer your content using WiFi.
add tunes to library on ituners then sync ur ipod
install itunes and plug your ipod using the dock connector
The 4media iPod PC transfer license code is: 702570257s4590c590458195-1ebe-aab4-41d2
The easiest method to transfer a photo from an ipod to PC is to use the iPod dock connector cable. Connect the ipod to your PC with the cable. Autoplay will come up. Click the "Import pictures and videos" button. Click import and the photo will be transfered from the ipod to the PC.
there is a slim chance that your iPod will be damaged by downloading free tunes unless the person that uploaded that free tune designed it to destroy your iPod however this is unlikely and if your iPod is damaged you can restore it via your PC or Mac
You go to the library open it then drag whatever you want to your iPod unless you have a iPod touch and it needs to be synced
This ipod manage software can transfer the files from ipod to computer, ipod to iTunes, and iPod to iPod:
if you mean like you bought songs on your iPod and they were never on your PC than plug your iPod in, hit sync, and it should ask if you would like to transfer the items on you iPod to your computer so hit transfer
using the USB cable along with the ipod