The Capstan technology has been available for several years. It's been discussed before here, ages ago, but I don't recall the thread/s. It would be interesting to know which soundtracks have already been the subject of the Capstan process. Any?
I wish the company had been more imaginative instead of naming the software tool after a part of a tape player without even a qualifier, like "Capstan fixer." I guess they were at their wits' end just coming up with a company name by mixing 'celery' with 'ceremony.'