Could some Elvis' records be recognized with better positions on past charts?

[Ramiro]

I've read some time ago that one George Harrison's record was recently recognized with one more week at number one on a chart of the seventies because they came to the conclusion that it sold more than they thought by then. Thinking about Presley, we all know that some of his records, especially in the days after his death, sold a lot more than the charts recognized. I wonder if the same procedure done with Harrison could be done with some Elvis' records, recognizing them the real sales, and as a consequence, the real chart positions. What do you think about?

[Ramiro]

What do you think about? Not only "Moody Blue", I think that the single "Burning Love" and others could be recognized with better chart positions and chart performances because their real sales are said to be higher than the ones recognized by Billboard and other sources by then.