Dear Record Label Guy,
Might I suggest sandwiching the record between 2 oversized (like 8") pieces of cardboard when mailing. Your method of using a single piece of cardboard which is the same size of the sleeve with just a piece of paper taped over the top is not working. My record arrived more-or-less OK, but you're really taking a big risk to save less than a dollar on shipping costs. I'd gladly pay $5 postpaid to safely get a record rather than $4 to get one shipped like this.
Thanks,
Record Buying Guy