Resampling song quality help

Okay, well i pretty much figuired out my mpc and made several songs, and i already converted most of them to mp3s on my computer by resampling the song with the main out recording feature, but i noticed the quality isnt the same as it is when its in the original sequence. i was wondering if there is anyway to duplicate the exact sound quality of the song that is being played on a sequence when you convert it into a sample so i can export it onto my computer? The sound quality isnt too bad, but it dosent sound too professional and it makes me sad

MP3s are are lossy compression. This means MP3s are of a lower quality than CD quality wave file. There is a hundred other reasons to, such as your DAC (how you record into computer), cables, the software, gain structure, MP3 bit rates.
You can use MPC to record MPC output. This does not need cables, it is a setting on the record screen. So if you have a sequence to record go to record screen and choose main out in the source options, hit start recording, then hit start on the sequencer. THis will make sample of your sequence, memory permitting. You have to save sample, and rename it if you want. Then plug in your USB and mount CF card or harddrive where you saved sample of sequence and transfer it to your computer. This will be of the highest quality, then its you have to choose the appropriate MP3 bit rates ect when you convert it so it sounds good. So do not expect a MP3 to sound real good compared to wave as it is a lower quality format.

make 2 copies....one .wav and one .mp3 to listen to and less space