VIDE-CDD.SYS is fine, but I seem to have found the crux of the problem:
Open the files readme.txt, msdos.sys, autoexec.bat, and config.sys, and you'll find that the ends of the files are all garbled!!!!!! This may be a Bug in HD-COPY (I remember there were reports about it before); after extracting, the files may get corrupted.
The above are only 4 text files; if they were executable files, then of course the system would hang after running them!
Could the moderator consider using a different compression format in the future, to prevent similar problems?