>>Are you sure that gnOrigin file isn't wraped already?
>>
>>>Good question, checking - the only use of buffer is shown, but if the record is an id the buffer is refilled with the next record ...
>>> m.buffer = FGETS(gnOrigin) && Record is ID, skip record
>>>
>>>
>>>>Do you make any changes to m.buffer between FGETS() and FPUTS()?
>>>>
>
>Not as far as I can tell from using any textedit.
>I've checked with the operators of the origin files - the FTP process sometimes reflects a eor at 256 but that is not the case here.
>
>My origin file is correct. Destiny file is not...

I dont know what could cause this but I still belive that it's not FPUTS().
Would you get the same result if you process file in question again?