Whats sector interleaving?
One of the clever design creteria of CD-i was that the system should be able to retreive audio and video information in realtime from the disc and send this information directly to the appropriate decoder ICs, without putting a heavy load on the over-all system performance. Because of this, a CD-i player does not need much RAM or processing power, since all audio and video decoding is performed in realtime without storing large amounts in RAM for later decoding. To enable the simultaneous retreival of both audio and video information, data is interleaved on the CD-i disc. This means that each sector contains a piece of either audio or video information, and that those sectors can be put in consequence next to each other.
