What is sector interleaving?
in section 3 of this FAQ). Naturally, this process of placing all the information bits at the correct order is not done manually (although it remains the CD-i producer’s responsibility to investigate wether the choice on amount and quality of audio and video will fit in the data stream). The process of the creation of a file that represents the contents of a CD-i disc is called disc building. The resulting file is usually called a CD-i Disc Image.