The scandoubler fits very well inside the standard A1200, however you can NOT use the original HD cradle with it. I, as you, wanted this in a standard A1200 (for my mod project) so I simply cut and bendt a metall plate to fit and it worked well for me... thought I do have a sligty slimmer drive than that of the stock A1200. I didn't have a dremmel at the time so I simply put the drive in an antistatic bag and taped it to my custom cradle. :hammer: