Metal Gear Solid 4: Guns of the Patriots

Metal Gear Solid 4: Guns of the Patriots is an action-adventure stealth game developedby Kojima Productions and published by Konami n June 12, 2008 for the Sony Playstation 3. As many PS3 games, it featured DLC support, but the podcasts had to be downloaded from the in-game Extras menu. Two sets of podcasts exist for the game: the Japanese one called Guns of the HIDECHAN!Radio and the western one called MGS4 Integral Podcasts. The Metal Gear Solid 4 Database is listed as an add on for Metal Gear Solid 4 and is considered DLC by Konami, but is actually a standalone application that can interact with MGS4 to unlock additonal entries in the database. All the DLCs were discontinued on July 16, 2014, but a workaround was found on January 2015.

How to obtain
All of the content for the western versions is now hosted on another server, save for the iPod song Chair Race. It seems that this method does not work for the digital version of the game. See here for all the instructions.