^^^Thank you for that information, jissa.
I don't read math articles - I'm afraid math has never been my forté (O.K., I'm lousy at it.
) - so that may be another reason I know nothing about the format. As for science, I do read some science, but in the realm of natural sciences. Oh, and science fiction, of course....
For those that need the capabilities of DjVU, I hope more eReaders will support the format, but I suspect most manufacturers/producers are, naturally, more interested in the money-making aspects of their products than trying to satisfy the needs of relatively few (??) readers.
Holly