Burn

Slang for making (burning) a CD-ROM copy of data, whether it is music, software, or other data.

The activity of copying files or to a removable media, usually a CD-ROM or DVD-ROM.

this means to discard cards at the beginning of the shoe.

To discard the top card from the deck, face down. This is done between each betting round before putting out the next community card(s). It is security against any player recognizing or glimpsing the next card to be used on the board.