Untaped vs. Untapped — What's the Difference?

Not taped recorded on tape.

Untapped: The Scramble for Africa's Oil (Harcourt, 2007) is a book written by John Ghazvinian about the petroleum industry in Africa. The book was received well by critics, and garnered good reviews from both the Boston Globe and The New York Times.

Not taped affixed with tape.

Not having been tapped

Not recorded on film or tape

Not utilized

Not tapped; not drawn on in terms of resources.

Not subjected to tapping;

Not drawn upon or used;