It's mainly from the library of congress and adapted to MySQL to be easily used in your own project, be it an application or a website. For more details of the database, its coverage, magnitude and structure, please see the above link. To purchase, please just add it to cart and check out via PayPal.
This is not a digital download. Because the total size of the database is well over 100GB, we can't serve it from our server. We will deliver a package containing a mobile hard disk to your shipping address.
Feel free to let me know if you have any concerns regarding this database.