About the only use I can think of is the capability to create a list of recordings to play back in a specific order. Which may be handy on a pvr without the capability to export recordings. This allows a selection of recordings to be exported unattended to a DVDR. Could for instance be handy on a Sky box (and a freetime box). I guess such a feature could be set up using the CF on HDR FOX T2, but not really worth it, in my opinion. If the recordings are correctly ordered for a particular series then it could also be handy without a way of selecting a specific order. One big fly in the ointment is that a freetime box has no way to sort recordings in a folder, and is inconsistent in order where the programme has an episode number to when it does not. It's even worse when there's a mixture or the broadcaster resets the episode number mid series.
To answer the OP, there is no way I know of creating a playback list on a freetime pvr.