After few accidents when footage copied "simple way" ended up being corrupted now I only use Catalyst Browse to offload footage from memory cards.Just another comment about drag & drop, my friend used this method the other day to copy over rushes we'd shot. I didn't have my laptop with me as I usually use Offload. Anyhow, for whatever reason his MacBook Pro decided to eject the destination drive mid transfer and for whatever reason the XDROOT folder on the XQD card disappeared! After many attempts to re-mount the XQD card on different computers, all showing nothing, I put the card back into the camera, no clips, the camera thought it was an empty card!