Is Mad Dog Made by LiteOn or NEC?

Who makes the Mad Dog Multimedia MegaSTOR 18x Triple Format DVD+/-RW on sale at CUSA for $29.99 this week.

According to this thread, the drive neither. It’s a Samsung SH-182D.

I have the LS version and it is a Samsung SH-182M. The non LS is a SH-182D.