Just released is a four DVD set entitled "Elvis A Legendary Performer, Volume 1 - 4". This factory made set - limited to 500 copies - contains over seven hours of rare Elvis material, supposedly with good sound.
Some highlights from the content:
The very first piece of film with Elvis from 1955
Elvis meets Bobby Darrin in 1960
The nude scene from Charro
Various press conferences
Home movies with Elvis in 1956
Elvis and Danny Thomas
Elvis' last concert from June 16, 1977 with original sound
Home movies with Elvis from Hawaii in 1969
Various live shows from 1977
Elvis live in Madison Square Garden in 1972 with sound
And more.
source: Various/ June 17, 2008