Eat of the Apple

Fuck. And also fucking fuck.
Okay, requesting advice from iTunes users out there, because right now iTunes is not my friend.
I did years of casual research, including pointedly and directly asking 'If I open the iTunes software will it fuck up my current musical world?'
And so today after setting the don't turn anything into an m4a file switch, I told iTunes 'Just look at the music folder. No touchy, just looky.' And it started looking. Since I have about ten thousand files, it was going to take a while, so I fired up MMJB and asked it to start burning De Profunis for JimWeasel. Which was when I realized that, as iTunes *just looked* at the files, they were disappearing from my playlist.
Now I have about three dozen playlists, all of them completely empty. Some of these were works in progress for which I have no backup data. Some of them I can go to the web page and re-create the playlists by hand if I ever get that much energy.
iTunes users:
WTF happened?
Is it correctible?

EDIT
More concrete data:
What, precisely, did I do?
If I recall correctly, I set the 'preference' to 'Import using mp3 encoder' and then told it to 'Import' the MyMusic folder where my mp3s are. Which, as I discover later, means that not only are the playlists empty but MusicMatch can't find any of the songs it thinks are in the library. The files appear to be in the folders when I go directly to the folders and look, but for some reason they don't seem to match with what MMJB has them listed under. This may be why the playlists *appear* to be empty and simply are referencing a bunch of empty name referents.

Also, when I go and open the playlist files with MSWORD I do at least get some data--a list of file names that should reference the songs I put in them.
F:\My Music\They Might Be Giants\Then_ The Earlier Years 1\32-Greek #3.mp3
F:\My Music\Los Lobos\Desperado (The Soundtrack)\01-Cancion Del Mariachi.mp3
F:\My Music\Ukrainians\05 Anarkhiya (Anarchy in the UK).mp3
F:\My Music\Various\Gen X Cops - You Can't Stop Me!.mp3
F:\My Music\Plan B\C^arovniki\02 - Dobrodos^li.mp3
F:\My Music\Concrete Blonde\Mexican Moon\13-Bajo La Lune Mexicana.mp3
F:\My Music\Rachid Taha\Arabesque\rachid_taha-rock_el_casbah.mp3
F:\My Music\Panjabi MC\Beware\Panjabi MC - Yaaran Kollon Sikh Kuriye.mp3
Hrmmmmmm.
F:\My Music\Concrete Blonde\Mexican Moon\13 Bajo La Lune Mexicana.mp3
F:\My Music\Plan B\C^arovniki\02 Dobrodos^li.mp3
These are current file names. It appears that I have instigated subtle changes in file names. At least I appear to have the ability to reconstruct the playlists, if I can get Musicmatch to be able to find the songs again. Which may mean that iTunes can no longer find them. Which I could probably live with.

(no subject)

Thank you to my smart iTunes using friends. It looks like I screwed myself over, by not reading the documentation closely enough. All the files are there, they're just renamed and juggled about. So in order to put things back where I want them, I'll just spend a weekend tinkering and arranging--I've done it before, I can do it again. And from there I can rebuild my playlists. And I am unchecking the two boxes that allowed me to screw myself over so magnificently. Because, despite my distrust and annoyance with it, I have not seen the mind-numbing slowness and CPU choking that MMJB has started to produce as my library grows larger.
It means that some of you who are expecting mix discs may have to wait longer than expected, though. Them's the breaks.

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Netflix review: Trick: A story about two guys trying to make it in the big city
Adorable in that way that usually comes off as cloying and stilted, overly cute. Maybe I can only stomach it in 'gay' movies. Or maybe only movies with two guys can do it convincingly. Miss Coco Peru (Of To Wong Foo fame) steals her scene, and even Tori Spelling is... dare I say it? Delightful.
Three wags, says CineCyrano.