Who said VGMTrans could convert midi to BGM? I think what your talking about is completely different, there is no way to convert an mp3 or any audio file for that matter into midi.
by Vravolmardo at 7:53 AM EST on December 22, 2012
I think I know what you are talking about. Do you want to play a midi with custom/edited samples right? The thing is, actually midis don't store any sample data, the program that plays 'em either routes the midi commands to hardware (like synths) or uses a default soundbank; for example, Windows uses a DLS bank called 'gm.dls' that can be found under the Windows installation dir.
P.S. You couldn't be the only one with that question, please don't delete an explanation on a public forum!