ISO 7487-2:1985
信息处理 数据交换用130mm(5.25 in)改进调频制记录,密度为7958 ftprad、1.9 tpmm(48 tpi)的双面软磁盘 第2部分:磁道格式A
Information processing; Data interchange on 130 mm (5.25 in) flexible disk cartridges using modified frequency modulation recording at 7 958 ftprad, 1,9 tpmm (48 tpi), on both sides; Part 2 : Track format A