@ motherfunka: It may be. I was like 2 years old when that stuff came out, so I don't know what was official or unofficial. I don't know anything about Prince bootlegs. I didn't know that was an official release. The only "bootleg" I have is the Dream Factory "bootleg" that I bought in a cd collector's store in the Poconos. The collection I do have of unreleased material/rehearsals/outtakes, I got from Napster when it first came out. A few things I have are:
"Baby You're a Trip" demo (that Prince did before he gave it to Jill)

"Screams Of Passion" rehearsal (The Family)

"Erotic City" rehearsal

"Delirious/1999" rehearsal

"Computer Blue/Darling Nikki" rehearsal and live and many more!

I love the long version of Alphabet Street from the first Lovesexy rehearsals comp. The sound quality is perfect and it's my travelling on holiday music.