@greyknight If it's a USB DVD drive, it's logically a USB drive to the PC and would be detected the same way.

Nothing is undetectable, is just how hard people are willing to look.

If you're worried about clipboard history, after the transfer, copy/paste a bunch of stuff over an over again to flush the buffer and any history. You'd have to look on your machine what those settings and values are before it cycles out old entries, but that's probably overkill.