* Tape length is calculated as the length of the longer side multiplied by 2. Thus, if the longest side of the master record is 30 min, a C-60 cassette (60 min total length = 30 min * 2) is required.
** ModoKing KL-HX — new brand of magnetic tape by a Chinese manufacturer. Similar to Panarec by frequency response and peak level.
ECP — BASF technology tape with good frequency response and high record level. Maximum cassette length is 74 minutes (C-74).
AMPS — tape from a Chinese manufacturer, having lower peak record level (-3dB) and, accordingly, lesser signal/noise ratio. Maximum cassette length is 71 minute (C-71).