Exactly my thought. A BMP is too simple to go wrong. There's so many pitfalls with digital files, because they can have much more information than the viewer wi

Exactly my thought. A BMP is too simple to go wrong. There's so many pitfalls with digital files, because they can have much more information than the viewer will show you in an obvious manner or at all. Not only layers, but metadata (EXIF) and whatnot.