I've a dvdr-full downloaded file which I want to burn to dvd. It consists of parts 001-086. I tried to extract with WinRar but it tells me that "archive file is in unknown format or damaged". When I check the last file (part 086) it says "incomplete downloaded file". What happened here, how can it be solved and how can I burn a file with what I have, if at all? I did download the complete file. Thanks for your usual assistance.