I removed the disk containing some hashed files, Fopnu displayed a message in the Library tab saying it cannot find the files, but after a few hours a user requested to download some of these files. Fopnu wasn't serving any data, since the disk had been removed, but why were the files displayed in the directory listing in the first place? Shouldn't Fopnu be smart enough to not display files that cannot be accessed? Furthermore, it would be great if Fopnu were open source so that we could contribute code and fixes.