media family on device is incorrectly formed. SQL Server cannot process this media family
If you are attempting to restore newer database to older SQL version you can always simply manually create the database in the older SQL version and utilize the task - generate scripts and include the data.

Save to File --> Advanced--> Types of data to script --> Schema and data.

Also make sure to Script for Server Version.

This might be the only supported option if you're trying to go from newer SQL Server to older version.

Related: Restore SQL Server 2012 backup to a SQL Server 2008 database?