Interesting to know Its a shame his plane has not come to fruition. I would love to see any of JPJ's solo material on an officially released CD/DVD.
To digress,I've always thought it would be interesting if Zep released their back catalog in USB format.
There could be each album on a USB in a multitude of shapes and sizes..including bonus art worktext etc. They could even make each USB cover the same as the original album.
Maybe that hasn't been explored as that option would diminish the music itself.
However,since all songs are already available in digital format through iTunes,a USB album would only be a convenient,if novel, container for the same music-offering the additional material ( photos,stories,interviews etc)