Computer crahsed or simply change a new computer? No worry. As long as those songs/videos/photos are still on your iPod/iPhone, you can move all songs, videos, photos, playlists, podcasts and more from your iPod/iPhone back to computer and iTunes.
All you need is this iPhone/iTouch/iPod to Computer Transfer
It was designed to help Easily and quickly backup your songs, videos, photos, playlists, podcasts and more from your iTouch/iPhone/iPod to ANY folder on your PC and to your iTunes.

The following are easy steps on how to move music and all other files from iPod/iPhone back to pc iTunes:

Free Download this iPhone/iTouch/iPod to Computer Transfer onto your computer first.

Step 1: After your iPhone/iPod/iTouch connected to pc, Launch the program you will see the right UI. Normally, the program will search the device automatically. If the device is enabled, the files (songs/movies/photos) will be shown in the list.

Step 2: Choose the list and files you want to transfer , Click the Export button.

Step 3: After you clicking the Export button, the following window will pop up, you can choose transferring to computer or iTunes directly. You can set the output folder at Advanced->Options before transferring..
Transfer music from iPod to computer, or transfer songs form iPod to iTunes.

Step 4: When the transferring finished, the following window will pop up. It shows that how many files have been done. You can click the OK button to view the output files.

You can know more features about it by referring iPhone/iTouch/iPod to Computer Transfer