Tutorial: Editing Compressed Graphics

I don't think PSV can deal with HiROM offsets. This image was what was used for the tutorial. If it's not a HiROM offset / absolute offset problem, you ROM might have an header and PSV is for non-headered ROMs or vice versa.

It's probably more clear here: https://www.ff6hacking.com/wiki/doku.php...compressed

Oh it's a "1"?  I was following the codes off of this page http://www.ff6hacking.com/wiki/doku.php?...sm:rom_map  So I was using a "D" at the start

So if I were to look for weapons to edit, the "Weapon Animation data" is it?  which says it's ECE400-ECE6E7, I would replace "E" with "1" too?