Antec TX1050B (BLACK) FILE SERVER TOWER W/SP500 500W ATX POWER SUPPLY 4x5.25" 2x3.5" 4x3.5"(hidden)&... (CANT1050B) "sp500" Questions

My regroove mp3 player reading'No File" it cant detect ports when i insert it in any computer and yet i want tp download more music,what could the problem be,please help may be your mp3 player memory ...