Well, if we are going to split hairs, then we are both wrong. And I am often.

I was partially wrong in reading your message. You were partially wrong in your stating your explanation.
You said:
"So taking into account the 3
duplicates and the fact that it starts with 00, there are 279 files in the folder. (276 tutes + 3
duplicates)"
Of course there are
NO duplicate "tutes." There are only duplicate initial file "numbers." The "files," themselves, are quite different, and, therefore, not "
duplicates."

And I do have them all.
Regards,