I'd have to assume they're counting stuff like the New Breed DVD/CD which sold over 1 million, G-Unit albums & streams, GRODT Soundtrack, Guess Who's Back album which sold like 500k before interscope sued the company that put it out. still don't know how they got that, UMG is starting to count numbers like Chartmasters. lol also the single sales they used are USA only, he should be around 70 million as a lead artist in RIAA single sales. just from the U.S., Canada and UK alone he should be around 90-100 million in single sales as a lead artist if UMG were to certify everything right now. So the 78 million would be low if its just a mistake and it's just a "records sold" metric