Copy II+ 9.1 parameters don't works. Bag of Tricks confirm: Address field epilogues changed to $9C $C9 Data field epilogues changed to $CC $99 Track $00 sector $02 byte $9E from $CC to $DE $A3 $99 $AA $03 $35 $CC $DE $3F $99 $AA $91 $9C $DE ; missing $9B $C9 $AA ; missing $1F $04 $01 $20 $2C ; $EA $EA $EA $05 $01 $20 $2C ; $EA $EA $EA