Worst application out there.....When you bring it up - it has to load all of your tracks.....it says 1 second for every 500 tracks.....I have about 240000 tracks.....it takes atleast an houe to load up. Do the math. Frequent hangs...hangs the machine....hangs the screen saver...... Time estimates are never correct....SLOW, SLOW, SLOW. Doing these tasks by hand would be faster...... I owned ver 1 many years ago - it SUCKED....I thought by the "RAVE" review that maybe they had improved something for ver 2.X....NOPE! In my mind they have gone backward. I think their bottom line is selling you tickets and such via TUniverse. DO NOT waste your money on this program....Do it by hand - it is faster...... Ohhh and this thing will absolutely fill your logs up with garbage.....seriously slowing you processor and machine.....

I have this app for both PC and Mac because it's the only app I can find that does what it does on all of the CDs that I burnt a long time ago before CDs would phone home and query a track and album database. The app is able to restore a big mass of tracks that were Track 01, Track 02, Track 03 to be before, necessitating my shuffle-play lifestyle. My Mac and PC both have loads of RAM and I think that helps a lot. And I have good Internet too. I just don't have the problems on either platform and I can now use my iPad the way I want to which is with play lists and album art and a tight library devoid of duplicate tracks and unknown artists.

Well, I guess my star ratings don't completely add up in terms of the sum of its parts, but had gigs of dirty music that I have been collecting and burning off CDs since before you could ping a server and label CDs as you were burning them, so the fact that I can clean up hieroglyphic track names and then also get cover art and remove the dupes that result is worth just about anything to me. $40 is too expensive for this app in the real world but in my world, I would have paid $400 to fix all those old songs. It was so bad that I pretty much only played all my music in shuffle mode.

From my perspective it's very difficult to think of anything positive to say about TuneUp. With the current versions of TuneUp and iTunes TuneUp crashes every time it launches. I have had a number of tickets with Support but these have achieved absolutely nothing. Judging by the number of posts on their forums I am one of many many people to have this and other problems. The list of reported problems is extensive.
Support is poor - very rarely is there anything from them on the forums other than "I have issued ticket .....". Users are not kept informed.
I bought a Lifetime Gold Membership which was supposed to cover me. Tuneup changed the app slightly, adding an extra option, and informed Gold Members they would have to pay more cash to access the complete package. This caused uproar on the forums - all to no avail.

I would avoid this program like the plague.

ok just wow i install the demo version on my mac with lion , and i add song per song and it crash on me like 8 time in 10 minute just wow for instability it great , i add 1 song at time , and it crash it not like i was adding 500 songs...........

With the new releases of iTunes 10.2, cover art is no longer being applied to library.