To add covers for display purposes,
go to the edit tab instead.
The uploaded files are downloadable as is, without any processing or
watermarking.
If you upload scans and have retouched / cropped / fixed them,
please consider uploading a pristine scan as well for archival and
preservation purposes.
Problem with cover: The NTSC-U cover isn't a bad scan, it is just a "holographic" cover.