But beware, unless you are using webif to decrypt the recordings first, downloading via FTP will leave them encrypted and ONLY PLAYABLE BACK ON THE ORIGINAL HUMMY.

If you are happy to FTP them back to the Hummy when you want to play them, that’s fine, but I suggest you copy all of the associated files, for each recording, as a set (.ts, .hmt, etc.) I think there are usually 3 or 4 in all.