Recently I was browsing through some of my DVD's and specially the Warner onces, which includes a booklet of DVDs released in the 1998 - 1999 period, but did not find the Paul Simon's Concert In The Park one, so I browsed on the web where I found this info on the official site from Paul Simon:
http://www.paulsimon.com/us/blog/paul-simon-concert-park-1991-dvdPAUL SIMON CONCERT IN THE PARK 1991 ON DVD
JULY 24, 2011, 3:39 pm
In 1991 Paul Simon played in front of several 100.000 people at the Central Park in New York. This concert has been released on CD and video tape on the Pioneer label. Due to some complicated contracts it is not possible to release this concert on any further video format.
A campaign has been started on Facebook to demonstrate Pioneer and Sony Legacy Records how much interest in such a release could be created.