Stream copy works fine
I tryed again and used "kryoflux-ui" to read stream file and wildewutz0.7 to write back to floppy.
I tryed my copy on MS-dos computer and it works very well.
Now I'll try to make it work under pce-ibm.
First, you must know that PCE emulator doesn't support 1.2MB (5.25 2HD) and 1.44MB (3.5 2HD) correctly.
To solve this problem, I recommend to use 800.COM to read.