I have one folder in iso file and I'm using "copy" function to extract it.
Upper progress is going to 100% and lower - to about 25%. Everything was unpacked. No hidden files.
Yesterday I copying large number of files and folders. "Elapsed" was increasing (and shows over 1 hour), "remaining" stuck at about 26:20 (or something like that) and stay that number to the end of copying. I don't have screenshot for that so I cannot reproduce it and I put this just as info in this thread.
Behavior in .iso files is largely down to 7z.dll. You'll probably see the same thing using 7-Zip itself.
(.iso support is really just a bonus that 7z.dll gives us for free since we are already using it for the 7z format and a few others. Modern versions of Windows have iso-mounting tools built in which are often better, since they let all programs see the drive, and I think also support more disc/filesystem types.)
Not really, because 7z has only one progress bar, not two. First progress bar in DO works good, second works bad.
The second progress bar (showing overall progress) is the one which comes from 7z.dll
Somehow it works good in 7-zip. Different dll?