The player could only play ATRAC formatted files, Sony's proprietary format, so was not technically an "MP3 player". Enjoy music, videos, games and apps with Walkman MP3 music players and MP4 video players. Shop for sony mp3 player at Best Buy. Sony Walkman MP3 players, like most MP3 players, can occasionally freeze up and stop working properly. Find low everyday prices and buy online for delivery or in-store pick-up Los reproductores de música y video para los que se toman la diversión en serio. Enjoy music, videos, games and apps with Walkman MP3 and MP4 players from Sony. The perfect portable digital music player for people serious about music. Disfruta de tu música y videos favoritos con los reproductores WALKMAN. The user needed to transfer songs via USB with bundled software OpenMG Jukebox (only works with Windows 98 software, later known as SonicStage ). Lithium-ion batteries: The players come with rechargeable Lithium Ion batteries able to support hours and hours of audio playback. Fortunately, there are two simple ways of resetting the Walkman system. Genießen Sie Musik, Videos, Spiele und Apps mit den Walkman MP4- und MP3-Playern von Sony und lernen Sie mehr über die einzelnen Spezifikationen. Find Walkman players and accessories at Sony. How to Install a Sony Walkman MP3 Player. The first method takes only 10 to 15 seconds to complete and is an effective way to troubleshoot most technical problems you may have with your Walkman. Easy content transfer: Sony Walkman MP3 players come with fast USB support and a user-friendly interface making it easier to transfer media files from computers. Before you can start using your Sony Walkman MP3 player, you must download and install the software drivers for your device on your computer.