Consider the high school yearbook: bulky, linear, pricey. Now consider the yeardisc: sleek, interactive, relatively cheap.

If Albert Lai's computer project is any indication, the time-honored tradition of signing high school yearbooks could soon go the way of the slide rule.

Lai and three classmates at North York's Earl Haig Collegiate have produced a CD-ROM yearbook — they call it a Yeardisc — that talks and moves, sings and struts.