I'll definitely look at Tracked 48. 2nd Class without signature never used to be enough for Paypal, I don't see anything that's changed there so I personally wouldn't use it for discogs.
Great, I finally found the info on the Royal Mail page. It would save me (or my customer) 60p over 2nd class signed for. I should switch I guess and thanks for persisting.
I'll definitely look at Tracked 48. 2nd Class without signature never used to be enough for Paypal, I don't see anything that's changed there so I personally wouldn't use it for discogs.