Projected release dates for Sequential Spelling Volumes:

DVD Sequential Spelling Vol. 1 release date May 24, 2009 (No longer available as of Nov. 1, 2009)

Computer Based Sequential Spelling Vol. 1 release date November 1, 2009 (Released)

Computer Based Sequential Spelling Vol. 2 release date January 29, 2009 (Released)

Computer Based Sequential Spelling Vol. 3 release date July 1, 2010

Computer Based Sequential Spelling Vol. 4 release date January 1, 2011

Computer Based Sequential Spelling Vol. 5 release date July 1, 2011

Computer Based Sequential Spelling Vol. 6 release date January 1, 2012

Computer Based Sequential Spelling Vol. 7 release date July 1, 2012