OK, I have had the Nike (both with Rio and Philips), and the IPOD-the Nike has crapped out on me a few times from rain (although they say you can run in the rain with it) and sweat. The IPOD is not water resistant, and has less battery life then the Nike (WHICH ALSO SUCKS). Then I found this sony-
Its a quarter of the size of the IPOD, a quarter of the weight, holds internally about 165 songs, and has a ridiculous battery life over 30 hours (a sony lithium internal battery). This is from my experience, not what Sony says (which I put below from their website). You can also add another chip that would hold another 90 songs or so. THE BEST PRODUCT OUT THERE BAR NONE!!!. the only problem (and this is with every player) is that it is not waterproof-but since it is so small, I discovered how to water proof it. Just wrap it in 2 layers of cellaphane and tape the end with electrical tape-works perfectly.
From the website:
Sony Network Walkman® Digital Music Player
Sony’s NW-MS70D Network Walkman® Digital Music Player is the latest solution from Sony for listening to digital music on the go. Small enough to carry in your pocket or purse, this titanium device comes equipped with 256MB of embedded memory allowing you to store 178 songs. The Internal Battery provides up to 33 hours of continuous Playback (ATRAC3 Playback), and the Magic Gate Memory Stick® Duo™ expansion slot allows you to take along even more music! The NW-MS70D also plays back ATRAC3™ Audio, supports MP3, WMA and WAV, and is supplied with Music Management Software for creating music mixes for transfer at super fast speed. Plus - our Skip-Proof Design (No Moving Parts) keeps your music playing smoothly despite your active lifestyle. Take your digital music to go with the NW-MS70D.
THE LINK: http://www.sonystyle.com/...0s0buNFy&Dept=pa