Hi Allan,
swamprat said "FTP can be used- see the manual." i.e. See the manual about FTP (not Filezilla)
While Filezilla is possibly the best FTP client (and free) there is one gotcha when transferring Humax recordings via FTP; If you transfer the recordings directly from the Humax's internal hard drive they are encrypted and can only be played back a Humax PVR. To be able to copy them unencrypted via FTP you need to copy them to a USB drive first (using the Humax media menu). After that you can leave the USB drive plugged in to the Humax and access it via FTP. The FTP client on the computer can see the files on the USB drive while it is connected to the Humax.
Now there are also some gotchas and things to be aware of for using a USB drive with a Humax:
- The Humax can
not copy files to a USB drive formatted in NTFS. See update below - The Humax can
only copy files to USB drives formatted in FAT, FAT32, Ext2 or Ext3. See update below - FAT32 has a 4GB size limit per file (no matter how large the USB stick or drive is).
- FAT has a 2GB size limit per file (no matter how large the USB stick or drive is).
- An hour recording can be 5GB for HD channels and 2GB for SD channels.
- The Humax does not split files at the 4GB FAT32 or 2GB FAT file size limits - it just stops copying the file. See update below
USB sticks larger than 2GB and for use with the Humax should be formatted in Ext2. See update belowUSB drives for use with the Humax should be formatted in Ext3 (unless your recordings are all less than 4GB, where FAT32 will do). See update below- The Humax can format USB hard drives for you
and will format them in Ext3. See update below - The Humax cannot format USB sticks.
- USB sticks formatted in Windows will normally be FAT or FAT32.
- USB hard drives formatted in Windows will normally be NTFS.
- Windows cannot natively access Ext formatted drives, but you can install drivers that add support for Ext2 and/or Ext3. See update below
- Mac OS and Linux can access Ext formatted drives. See update below
- The USB drive must either use less than 500mA or have it's own power supply.
- A USB drive left permanently attached to the Humax will take up one of the two USB ports.
- If you leave a USB drive left permanently attached to the Humax's rear USB port and you are using wireless the dongle will need to go in the front USB port.
If you are going to format a USB drive in Ext3 and copy recordings to the USB drive, you may as well install an Ext3 driver in Windows so you can just unplug the drive and take it to the PC, instead of using FTP.
Update: Apparently the latest software version formats USB drives in NTFS (which does not have file size issues or need a special driver installed for Windows) and can now copy files to NTFS formatted USB drives. 
Or you could forget the USB drive and FTP, and just copy the DLNA path of the Humax recording and paste that into a web browser's address bar and let the web browser download the whole recording for you. The only downsides here are that the downloaded files names will be a number instead of the show's name, and it's a little fiddly obtaining the DLNA path to the file that you want (but no harder than using FTP).