Copy from one domain to another

I am attempting to do a one-time copy content from one domain to another via FTP Voyager, as part of a site transition. With this tool I can either (1) download all source content to a local folder and re-upload it to the new domain, or (2) use the tool to FTP it from one server to another. The first option is slow and the second option did not work (could be my ISP). Is there another option? I was considering setting up mirroring temporarily, but I’m not really clear if mirroring in this case involves actual file replication or something else. Any ideas? TIA.

You could SSH into your Dreamhost account and use ftp to hook up to the other server and download the files. I’m not sure about the specifics of the ftp program, but man ftp will hopefully get you started.