How many albums do the Jonas Brothers have?

First Nick Jonas made a solo album called "Nicholas Jonas". The other albums are:

1.) It's About Time

2.) Jonas Brothers

3.) A Little Bit Longer

4.) Artist Karaoke Series: Jonas Brothers

5.) Jonas Brothers: The 3D Concert Experience Soundtrack

6.) Lines, Vines and Trying Times

Also Nick Jonas came out with a CD by his band Nick Jonas and the Administration called "Who I Am" in February 2010.