I am downloading a big file. I am about half done, but the file from the original download address link is no longer accessible [I believe the download link is only alive for X minutes after the download starts on that site]. However the file is available from that site, but at another download link address.

If I start over from the beginning I will be in this situation again (i.e. cut off before the download finishes, as that site is slow). I am using single connection per file and the host supports resume. How do I continue my downloading of that file using the alternative download address?

Thank you.