> When scraping a site, I often see filenames'
> extensions being changed. *.mov turns into *.qt...
> *.wmv turns into *.txt...
> 
> Can we please, just have an option to disable all of
> the renaming and keep the filenames as they exist on
> the server?
As I said in <http://forum.httrack.com/readmsg/15842/index.html?pid=15782>
the latest versions are broken. 3.32 works ok for me. 3.33 is available on
httrack.com

Some renaming is necessary. *.asp *.jsp etc are server side files.  Once
download you have plain html so a rename to .html is logical (and necessary
under window's extention to program mapping)

Other renaming is more difficult.  What does site/get?id=123 return.  It could
be a html page or an image.