I am having problems that are really getting frustrating. This is happening more frequently lately than ever before.

I try to download a song, and it sits there saying "connecting" and then goes to "needs more sources". I have tried downloading the song that says 60 people have it, 50, 40, 30, 20, 11, 2, and single users. Not one will let me download. The first song this happened with, I tried downloading it from 33 different sources (each source having anywhere from 2 to 120 people having the same version of the song). Not one downloaded. With the second song I tried, I tried 45 different times (each time I try, the song says it has anywhere from 100+ users down to 2 users with that exact title). Also, even different versions of the song, such as mp3, mp4, wma, and none even begin to download.
Now this latest song, 64 different times!
I guess the easiest way to explain: Lets say I want a song called "Impossible download" by john doe, So I click on each one of these:

267 Impossible download - John Doe mp3 4464 KB T3 or Higher 128
132 (8) Impossible download_John Doe mp4 4362 KB T3 or Higher 128
126 John Doe - Impossible download mp3 6543 KB T1 160

and all the way down to:

23 Track 8 Impossible download - John Doe mp3 4762 KB T3 or Higher 128
2 08 - Impossible download - Doe wma 5366 KB Cable/DSL 128
impossible_download - john doe mp3 4773 KB T1 128
Impossible Download (John Doe) mp3 5184 KB Cable/DSL 128

and every one of the titles in between (not counting the junk that isn't related). All the same song, just slight differences in the title, size bitrate etc.

I clicked on every one of them--64 different times (each the same song, with maybe slightly different file size, different bitrate, etc). Not one single one lets me download it. Not one. If all these people have this song, from 260+ users at most, down to 2 users, and even individual people for many of the ones I attempted....then WHY can't I download a single one of them? Not one. I can download other songs by an artist with no problem, just not the one I want. This keeps happening. WHY???