iPod data recovery is possible, just need an saved updated backup to do this job. That backup saved either saved on your computer disk or on your pen drive can be used to recover all lost, formatted ro even deleted data from iPod card. You can take help of software tool to do the same job, if the backup not work.
Many people own more than one iPod, Joboshare iPod Rip is a nice iPod transfer that allows you to transfer your music and video between iPods. You can easily transfer iPod touch music/videos to iPod nano. Until now this hasn't been possible without losing all your existing songs. This iPod Rip gives you the power to take control of your music collection. Mac Version: Joboshare iPod Rip for Mac

This guide will be helpful to the iPod users that allow you to transfer iPod music/videos to iPod. If you want to transfer music/videos to iPod Touch, iPod Nano and iPod Classic, you can refer to this step by step guide:

1.Free download Joboshare iPod Rip and run it. Once you connect iPod to computer you will see iPod touch will quickly be recognise by software, and all iPod library folders are shown in the interface. If you wanna try all functions offered by iPod rip, purchase and get a full version at a discounted price.
2.Open iPod "music" or "movie" library to select the favourite music/movies files you want to transfer. You can see all music/videos files in the main screen.
3.Select the iPod music/videos and check them completely, see the illustration as below. And then connect another iPod to computer, you can see the iPod icon displayed in the list, just drag the checked iPod music/video files into another iPod library. When you see a "+“ remark, drop down the files, and all iPod music/video files are automatically transferred into another iPod library folder.