It can be very easy for you to recover iPod Nano backup files. With iPhone iTunes Data Recovery, you can easily carry out the conversion. This program can recover files including photos, videos, audios, documents, and so on. In addition, you do not need to recover all the backup files, for you can select the files you need to recover.
1. Run the iTunes data recovery, select the recover mode
Backups do not contain all of your data, photos, music and apps. They consist of just the record of what that data was, and the settings you had at the time of the backup. The backups are not like Time Machine where you can recover deleted/lost files with iPhone Data Recovery. When you recover deleted photos from iPhone, you will still have to reinstall your apps. The settings you had for them will be there, but not the apps themselves or the other data (music, photos, etc.). You have to restore that manually.