Helical-scan video tape cassette system using 12.65 mm (0.5 in) magnetic tape on type VHS - Part 2: FM audio recording (IEC 60774-2:1999); German version EN 60774-2:2000
VHS型12.65mm(0.5in)磁带螺旋扫描盒式磁带录像系统.第2部分:FM音频记录(IEC 60774-2-1999);德文版EN 60774-2:2000