What are the differences between Serato DJ and Serato ITCH and Scratch Live?

Serato DJ is the software that has succeeded ITCH. The basic functions and specifications are the same, but some of the functions have evolved.

Serato Scratch Live is a digital DJ system consisting of the software and interface allowing DJing on conventional DJ equipment using special control records/CDs. Serato DJ is a digital DJ system allowing DJing using special hardware, without using time codes. The devices to which these two software programs are connected differ.

For details on Serato DJ, see the Serato website.