where to start with Neil? as a devoted fan for decades, I would recommend:

The First Buffalo Springfield record

Neil's:

Everyone Knows This Is Nowhere
After the Goldrush
Harvest
Tonight's The Night
Decade
Rust Never Sleeps
The DVD 'Live Rust' and the cd 'Live Rust'

That should get you started for a lifetime of enjoyment

>However, the initial release came with a DVD of an acoustic show in Dublin which is worth seeking out. I believe later releases included a DVD of a full band Greendale performance - I haven't seen this so I can't comment

The later release of GREENDALE (with the tones on the cover reversed) included a dvd titled CRAZY HORSE SESSIONS - INSIDE GREENDALE, which showed the band recording the album in the studio, not a live performance. The original w/the acoustic performance from Dublin mentioned above is well worth seeking out, as it gives a totally different version of the album (plus Neil's narration between songs).

So, counting the actual movie, there are a total of 3 GREENDALE dvds!