I have never done this but there is this information on the Brennan Web site
This is the
link to the post above
Reading it, it is ambiguous - first it says
"
The B2 has an ‘Export MP3’ function that is then used to copy selected (or all) of the mp3 Mirror files to a USB device and these can then be played on other mp3 devices."
Which would imply that you could just use it to get the entire mirror catalogue
BUT
It then goes on later to say
"
(e) Select the playlist that you have assigned in step (b), in this case the Red playlist.
(f) Repeat steps (c), (d) and (e) until you have selected all the required artists, albums and tracks.
(g) From the front panel knob, go to Main > Playlist Menu > Export MP3s and click on this.
(h) An incrementing count will be displayed in the lower left front panel display, this is the Export MP3 function copying the .mp3 music to the USB device."
So I think geter ... is correct you do have to build a playlist.
-------------------------------------------------------------------------------------------
I was wondering if the MP3 mirror would be visible from the B2's NAS. If so then you could use this to get the entire thing quite easily.
Fred