I have a list of web pages to download. When I download that list of pages, I
have encountered two problems:

1) a downloaded web page is accompanied with another two files, which have the
extensions .html.z and .html.readme.
How to download the web page only?
2) HTTrack always misses web pages. For example, I have a list of 1,000 web
pages to download. However, the result is that there are always missed
downloads. How to tackle this problem? 

Thank you