Yes Calibre's viewer can open the converted epub as well, but when I open it on my Reader, It's say "cannot open"
I have the other problem with PDF file convert from prc by Calibre. When I open on my Reader It's just show 8 first pages, all the others are blank pages. I try with many other prc files but it's not work. I also have the same problem when I convert PDF to PDF (To change the paper size and font size for better view on my reader). I'm confusing >"<
Any Idea? Did I chose wrong profile when convert or is there something wrong with my reader?