Used carefree Windows 7 Pro. Automatic recognition and installation of Samsung USB drivers (via Windows Update) that matters. Error for missing drivers for the modem part, but I have no use.
I have no problem copying again especially my favorite MP3 file.
Note that the BT2100 raises two separate partitions. The first is the internal memory, the second memory card if there is one (not to exceed the 8 GB I put my part to 4GB which left me).
Therefore fully satisfied with my purchase for a compatible USB cable cheap with that old owner of Samsung interface.