They include:

• 19 new/extended scenes, including more of Dobby, the flying Ford Anglia, a scary encounter with the Malfoys in Borgin and Burkes and much more!
• New self-guided tours which let you hover over the details of the Chamber of Secrets, Dumbledore's office and Diagon Alley. This includes some places that've never been shown in the film like more Diagon Alley shops and the sitting room in Dumbledore's office
• Interviews with Daniel Radcliffe, Rupert Grint and Emma Watson, and other cast members. They talk about making the film, their favourite scenes and what their friends think
• An exclusive interview with JK Rowling and screenwriter Steve Kloves about getting book two onto the big screen
• Activities which allow you to escape from the Forbidden Forest and sneak into the Chamber. You can also visit Professor Lockhart's classroom and look through his photos

The DVD-Rom also includes:

• New technology which lets you navigate through the DVD-ROM features using your voice
• An interactive Hogwarts timeline which shows the important dates in Hogwarts history, and has mini pop-up videos from the Harry Potter films
• Special puzzles, challenged and screensavers
• Magic trading cards which can be printed off to collect and share