On 09 Dec 2022, Frodo Baggins said the following...
 
 FB> 
 FB> Hi all - I bought the SD2IEC from Jim Brain  -  I have not been able to
 FB> run a .d64 file - any ideas what I am doing wrong?
 FB> 

You need to mount the image, if you have JiffyDOS installed it is very easy, 

@cd:image.d64

Without JiffyDOS
open1,8,15,"cd:image.d64":close1

That will mount the image and allow you to treat is just like a real 1541
directory..

... "I am" is the shortest sentence in English. Is 'I do' the longest?

--- Mystic BBS v1.12 A48 2022/07/15 (Linux/64)