Downloading Data Recovery for iPod 3.1.1.8 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. This software is a product of Mobile Phone Data Recovery.
From the developer:
How to retrieve lost iTunes music files, pictures, photographs and other multimedia files from your formatted Apple iPod music player? Apple iPod restoration program recover missing audio songs, picture files and folders that have been lost due to hardware malfunction from inaccessible iPod media player.
You may want to check out more software, such as DDR Professional Data Recovery Software, Kernel Recovery for iPod or Data Recovery Software for Pen Drive, which might be similar to Data Recovery for iPod.
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