These are the main set of Whitesnake laserdiscs available worldwide (both PAL, NTSC and first/second editions etc).
For a long time none of these were available on DVD.
The Whitesnake Super Rock 84 LD was eventually released on DVD in 2007.
I bought the DVD and it omits the interview footage included at different segments on the original LD.
The videos from Trilogy LD were also issued with the deluxe CD/DVD edition of Whitesnake 1987 but again omitted the additional candid footage on the LD.
Adrian Vandenberg was one of the key guitarists in Whitesnake for a significant period of time and of course Steve Vai also worked with Coverdale.
Steve Vai who was trained by Joe Satriani also played in the G3 live concert so these might be of interest as related titles to track down:
There are quite a few other music LDs that feature Vai, Coverdale/Whitesnake to search for. These mainly tend to be promo music LDs but they help plug the gaps for some other music videos not covered by the discs above.