There are way too much interesting cd's to give a definitive list. But I think you can place cd's in 3 categories:
- regular shows
- outtakes
- aftershows/one-off shows

I think you should begin with one show from every tour. That means that you need:
- city lights (80 until 86)
- wonderboy (87)
- livesexy (88 )
- spanish harem (90)
- stagetronic (92)
- act I live in chicago (93 act I)
- for all the roses (93 act II)
- prince is muerto(95)
- millenium grooves (96/97)
- utrecht 98 (97/98 )
- celebration in columbus (00/01)
- ona in chicago (02)

After that concentrate on studio outtakes:
- the work (12 cd's?)

Then the aftershows/one-off shows:
- peach and black (87)
- small club (88 )
- estandard (93)
- this is what we do to have fun (95)
- r u gonna go my way (98 )
- nighttown (02)

After these cd's you will have a good start...



Good luck,
TheKid