Actually and surprisingly, there are very few players that support WMA Lossless, which compresses files to half their original size without any loss of audio data so that they sound better than your average audio file. If you're in need of WMA Lossless, check out the Toshiba Gigabeat S and other next-generation Portable Media Center (PMC) devices. These are portable A/V players, along with first-generation PMCs such as the Creative Zen PMC. Or you can get an Apple iPod or Nano and utilize the similar Apple Lossless format.