woodydr said:
Okay, what model of Samsung player do you have?
Some Samsung units, but not all, use the MTP protocol to transfer files. There is no built-in support in iTunes or OS X for this protocol. It is impossible to tell if this matters in your case without knowing what model MP3 player you have.
There is a Mac program called
XNJB that has some MTP support. It is really intended for Creative players, but you could try it and see if you get lucky.