As a way of adding extra storage or just being able to back up your recordings in case of a HDD failure that would be such a good idea, but I assume it would breach some copyright legislation even if the recordings were protected.
As all of the equipment that is attached to the network belongs to Virgin media, included the settop box, I'm not sure that you will get much response here as to how to modify it to perform actions that VM didn't intend and it will certainly fall outside the T&Cs.
No doubt there will be somewhere that does, but I have no knowledge of where that would be.
The point is if the people working on the open source had the information of all the bugs it would be fixed quicker. Insted of me posting a bug on hear and being told by the usual suspects that I'm wrong only to turn out I'm 100% correct once more people notice the issues. Ie the guild issues we have seen posted on here 5/6 times.
The same with the sky uhd issues its not working as it should and people on here who don't have a 360 box are telling me I'm wrong. That in non sense