Patent ID: 6577589
Filing Date: 2003-06-10
Classification: G11B

Abstract:
An information recording medium on which record information comprising information units, each including partial audio information obtained by dividing compressed audio information obtained by applying a variable length compression onto raw audio information, is recorded wherein(i) the information unit includes header information and lead data which is the compressed audio information positioned at a lead of one or a plurality of the partial audio information, and (ii) the header information includes: reproduction time control information indicative of a time of reproducing the partial audio information, to which first lead data among the lead data included in the information unit together with the header information belongs; forward position information indicative of a position on said information recording medium, at which the compressed audio information to be reproduced a first predetermined time duration after a reproduction time indicated by the reproduction time control information on a reproduction time axis of the compressed audio information is recorded; and backward position information indicative of a position on said information recording medium, at which the compressed audio information to be reproduced a second predetermined time duration before the reproduction time on the reproduction time axis is recorded.