A Someone

Hi, sorry for bumping this topic, I was just wondering if this is something that could be answered at all :)

Hi HMRC, First of all, thank you for creating user forums, this is immensely helpful! I'm planning on moving abroad, specifically France, and I'm trying to decide how to ship over my personal belongings. I have already begun shipping my library via mail, which I discovered is a subject to export (or is it import on the French side?) tax, however I have some items that I deem too valuable/fragile to ship over mail and I'd prefer to take with me on a flight and I'd like to learn if I should prepare for any sort of customs upon exiting the UK and entering France. I'm planning on bringing my Playstation console as a carry-on luggage and around 20 DVDs in my hold luggage. All of the items have been purchased in the UK and VAT has been paid for them. Is there something I need to prepare in advance of my flight to ensure that neither of these get blocked in customs, whether on this or France's side? Thank you in advance!