I was curious as well and did some research: According to wikipedia, Gramavision was sold to Rykodisc in 1994, which then was acquired by Warner Music Group (WMG) in 2006. According to discogs, WMG has reissued 14 albums from the Gramavision catalogue after 2006, including 7 from John Scofield. Let's hope they reissue John Carter's albums as well some day.