Frankly I did try to fine info on this before this post... but I've been up all night mixing... Coffee good!
so I created (exported) my song as an mp3 file, put it up on SoundClicks but as always the upload seems to compress my compressed mp3 :(
 
I used all top options exporting to mp3, Whatever that means? (bit rate 128) and (quality set to best) I left variable bit rate uncheck. What does that do?
I guess I will use Reverbnation to post my song. I really want to have the best quality song file. I'm not ever sure if there are any other options or at least a better mp3 converter process.
 
Coffee good... oh I said that...
 
peace~!  
 
 

I use 160kbs as I believe that's the format Sound Click uses. Could be I'm thinking of Sound Cloud. I use all 3 and each has it's pitfalls. I like Sound Cloud best. Clean and no Bull.  Reverbanation is full of bullsheet and you post a song and they tell you it's climbing the charts and send us money . You should post this question in the songs forum where lots of folks are dealing with your issue and certainly have it figured out by now. 

Thanks for the info :) I just found out what you mean my Bullsheets with Reverb... also I ended up closing my Sondclicks account. I uploaded a song then went I went back to SC. my Band site was gone and my song was still reading on facebook!  Crazy days. I need to find a distributor as well. Reverb is now out... 
 
Peace!