'''Amstrad''' made two different disk drives for the Amstrad/Schneider CPC range:
* DDI-1 - a set, consisting of the real DDI-1 (= Disk Drive Interface) and a FD-1 3" disk drive, as well as the CP/M 2.2 license and disk. This set was for the CPC464, which doesn't have the disk controller built-in.
* FD-1 - a 3" disk drive as secondary disk drive unit for the CPC664, CPC6128 and CPC464 with DDI-1
Note that there was no official external disk drive for the 6128Plus or even the 464Plus. While the difference between a CPC664/CPC6128 and a 6128Plus was simply a changed pin-out which can easily be solved by a new plug on the disk drive's cable, the 464Plus was harder to equip with a disk drive: Although the pin-out of the expansion port was left unchanged, the DDI-1 cannot be operated on the 464Plus without modifications.
[[ImageWhile the difference between a CPC664/CPC6128 and a 6128Plus was simply a changed pin-out which can easily be solved by a new plug on the disk drive's cable, the 464Plus was harder to equip with a disk drive:ddi1.gif|thumb|Amstrad FDAlthough the pin-1/out of the expansion port was left unchanged, the DDI-1 disk drive]]cannot be operated on the 464Plus without modifications.
== Technically Speaking ==
== Pictures ==
<gallery caption="VidiDDI - 1">
Image:Vidi Publicity 1ddi1.jpggif|Publicity Amstrad FD-1Image:Vidi Publicity 2.jpg|Publicity 2/DDI-1 disk drive
</gallery>