This list collects 7 free iPod Transfers to help you copy music, songs, rating, pictures, playlist, etc files from iPod back to computer and iTunes, they all upgrade and support all series of iPod including iPod Touch, iPod Nano, iPod Classic, iPod Shuffle, etc. Some will also support Apple iPhone. They are totally free without any limitation. I have scanned them with Notron, they are all safe without any virus and spyware.
But they can not transfer Movie, TV shows or Podcast from iPod to computer & iTunes, if you want to recover your lost iPod films, you can refer to this iPod Transfer Review, it provides many iPod Transfers would help you a lot.

If you want to know how to transfer iTunes library to another computer, you may take a look at this guide
http://www.reviewstown.com/how-to-transfer-itunes-library-to-another-computer.html

Floola is a free iPod to Computer transfer to efficiently manage your iPod. It's a standalone application that can be run directly from your iPod and needs no installation under and Windows (98 or newer, including Vista). Manage Music, Videos, Podcast and Photos all in one simple app, anywhere on any computer.

Floola supports almost all features offered by iPods including photos, artwork, podcasts and smart playlists! It automatically converts any incompatible audio or video file so that you can copy almost any file to it. It allows adding youtube and myspace videos with a single click. Now it even makes it possible to keep your Google calendars synched!

Download Free iPod to Computer Transfer - Floola (7.14 MB)

Cucusoft is an easy to use iPod/iPhone utility designed to help you backup the stuffs in your iPod/iPhone/iTouch. Recover lost or missing music, backup and restore all of your iPod/iPhone/iTouch content, including your favorite songs, videos, photo files and Play Lists, and that's not all.  If you have any iPod/iPhone device, this software is a must-have utility to keep your iPod/iPhone safety.

Key Functions of Cucusoft iPod to Computer Transfer
Transfer music, song, video, movie, tv shows, podcast from iPod back to computer or itunes.
Copy picture from iPod to computer.
Easy to use iTunes alternative, upload music and video from computer to iPod.

Download Free iPod to Computer Transfer - Cucusoft (6.4 MB)

YamiPod is a freeware application to efficiently manage your iPod under Windows (including iPod to Computer or Computer to iPod). It can be run directly from your iPod and needs no installation. Take a look at the feature list to find out what it can do and feel free to suggest anything that might be missing. Here's a brief description of the features in YamiPod:
mp3 and AAC files can be copied to/from iPod;
advanced song import/export settings;
built in music player
iPod informations
remove duplicated tracks
find lost music files
PC to iPod synchronization
multiple iPods support

Download Free iPod to Computer Transfer - Yamipod (4.6 MB)

SharePodLib is a .NET 2.0 class library for interacting with an iPod. Features as follow:
Automatically find an iPod attached to a PC.
Enumerate all tracks and playlists on an iPod
Add, remove and modify tracks, playlists and album artwork.
Access and backup photo albums
Support for all iPods and iPhone
Copy tracks from an iPod to PC
Automatic iPod backup & restore - tell SharePodLib where to store backups and how many to store, and SharePodLib will automatically backup the iPod when necessary.
Support for complex databinding to Windows Forms controls.

Download Free iPod Transfer - SharePod (1.19 MB)

AVCware iPhone/iTouch/iPod to computer transfers all of your critical iPod content back onto your PC and into iTunes. Whether your computer crashed, broke, or was stolen - or if you simply bought a new computer, or want to share your iPod content with a friend - AVCware iPhone/iTouch/iPod to computer transfers can help.

Download Free iPod to Computer & iTunes Transfer - AVCware (1.09 MB)

Manage a music library from 100 to 50,000+ audio files and playlists*; whether Rock, Classical, Audiobooks, or Podcasts; whether they’re located on your hard drive, CDs, or a network. Organize, browse, or search music by Genre, Artist, Year, Rating, etc., and never waste your time trying to find mp3s you know you have.

Sync with iPhones, iPods, and most any MP3 phone or Audio Device. Just click the Sync button to sync tracks, podcasts, and related properties such as Album Art, ratings, play history, and playlists with a broad range of portable devices*. With Volume Leveling, the tracks will even play back on your device at consistent volumes!

Download Free iTunes Alternative - MediaMonkey (6.9 MB)

Songbird's device support is limited. The Device Support wiki has additional details about what's supported. Apple iPhones, iPod Touch and Microsoft Zune devices are not yet supported. Browse, organize, sort and search your media.

Songbird supports MP3, FLAC, and Vorbis on all platforms; WMA and WMA DRM on Windows; and AAC and Fairplay on Windows and Mac.

Download Free iPod Manager and Music Player - Songbird (13 MB)