If they are valuable and sending via Royal Mail check their packaging advice (https://www.royalmail.com/sites/default/files/Royal-Mail-Our-Services-March-2017.pdf) because if something gets damaged in transit they will not payout unless it has been packed as per their guidelines. Most record mailers do not comply to this! I found this out when a copy of this got broken in transit:
If they are valuable and sending via Royal Mail check their packaging advice (https://www.royalmail.com/sites/default/files/Royal-Mail-Our-Services-March-2017.pdf) because if something gets damaged in transit they will not payout unless it has been packed as per their guidelines. Most record mailers do not comply to this! I found this out when a copy of this got broken in transit:
https://www.discogs.com/Loefah-Digital-Mystikz-Twisup-B/release/338126