excerpt from Electronic Musician 

From the article Mastering Secrets, Electronic Musician October 1998:

Although there is certainly no shortage of mastering engineers working in the industry today, there is only a handful whose names constantly appear on chart-topping albums. If you check out the mastering credits on ten CDs in your collection, chances are you'll come across the same people -- and I guarantee that Bob Ludwig is one of them.

With a career spanning more than 30 years and a total project count of more than 7,000 records, Ludwig is unquestionably a giant in the industry. In fact, many major artists refuse to work with anyone else.