Sony nwz-610 series 2 gb Mp3 player

the figure that is given for songs you can load to your MP3 player are calculated using 128Mb/s for 3 min songs. But the amount of memeory occupied by each song depends on the bit rate (KB/s) and the duration of the song (time in sec). So if are going to load songs with a longer duaration and want to load more songs then load them with reduced bit rate.

However note reducing the bit rate of your songs wilol also compromise the quality of your songs, it will be good too use variable bit rate setting a low bit rate like 64-96Kb/s.

To convert your songs you can try using Easy CD-DA extractor convertor it offers a variety of output formats at different bitrates and qualities.