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Unsupported Copylock variant
SPS IPFs 1240 (APB: All Point Bulletin) and 2100 (Weird Dreams) report:
$ disk-analyse --format=amigados_copylock 2100_Weird\ Dreams.ipf a.ipf
*** T0.1: Copylock: Reconstructed damaged track (1 bad sectors)
T0.0: AmigaDOS
T0.1: Copylock
T1.0-79.1: AmigaDOS
T80.0-83.1: Unformatted
Resulting IPF does not work. This is a Copylock variant which needs support added. Either auto-detected, or via an explicit new copylock variant format identifier.
Eight bytes after 16-byte signature in sector 6 do not match the LFSR. The LFSR is the same on titles 1240 and 2100, but these eight bytes differ across the two titles. They obviously are checked and presumably are the key value.