Marcus wrote:

> No. There is a check that prevents you from writing outside the game
> file iself. _However_, there is another BIOS vector you can use which
> does not have this limitation. It's a bit tricky to call though, as it
> doesn't have any code to return to the game ROM bank. Here's some code
> you might find useful:
> ...

Thanks, it worked, I have be able to correct the errors in my FAT and DIR.

Soeren Gust