Hi there - I agree with Fred about downloading to a folder on the PC BUT it needs to be pointed out that when you download from KESO you are downloading a .zip file which needs to unzipped first before it is then copied/moved across to an SD card.
This may be obvious to those of us who are more familiar with PCs and unzipping files but not all players are computer literate and would not necessarily realise this missing step. Having said that downloading to a floppy disk the KESO file would also have to be unzipped before it could be played and not only that if you downloaded from different players you may have to renumber/rename them to play from a floppy if more than one song had the same prefix i.e. 01, 02 etc.
When using SD Explorer tool this renaming is not necessary. Joan