Virgin 360 keeps deleting records

Which recommended things have you tried?

What happens if you pause a live program for a few minutes and then play it back?

How much free space is showing on your hard drive?

Recordings > Recorded > View all > It will show a percentage in the top left hand corner of this screen. You might need to delete some recordings.

Have you tried a factory reset?

To factory reset go to Settings > System > Factory Reset. It's actually misnamed and only a partial system reset and not a complete factory reset. You are given 2 options

Keep Recordings
Format Disk

Normally I would suggest choosing the Keep Recordings option, which means you won't lose your recordings and any planned recordings or series links you've set up.  However since you can't watch recordings as they are being deleted then you may as well choose the format disk option which will also delete your recordings and series links (if it doesn't work it will mean a replacement box which would result in you losing the said recordings and series links anyway)

You can either call Virgin on 150 from a Virgin or 0345 454 1111 from any other phone to report a fault (option 2) or wait here for one of the forum team to pick this up which might be 2 to 3 day's