[AndrewD]

Originally Posted by bayigurita

Nobody was able to resume the download, if I set force_redirect=0 or force_redirect=1. The file I hosted was larger than 100MB (not at the same vbulletin+LDM host), and if I try to download, and stop it in the middle and resume the download, the download start from the beginning not resuming properly.

If you try to deliver large files held on a different server with force_redirect=0, then indeed you are going to have problems, because the script running on your server will use all its available cpu time fetching the file. This should not happen with force_redirect=1, because LDM simply triggers a browser redirect to get the file. With force_redirect=2, LDM is not involved at all in the transfer process.