An information record medium having a record track recorded with at least video information is to be reproduced by a reproducing apparatus, which has a read device and reproduces at least video information while relatively moving the read device along the record track. At least video information and...http://www.google.com.au/patents/US7783158?utm_source=gb-gplus-sharePatent US7783158 - Information record medium, apparatus for recording the same and apparatus for reproducing the same
Information record medium, apparatus for recording the same and apparatus ...