BS EN 61834-4:1998 录像.家用6.35mm磁带螺旋扫描盒式数字视频记录系统(525-60,625-50,1125-60和1250-50系统).片头表及目次
Recording - Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems) - Packheader table and the contents