In the era of personalized everything, it seems that nothing can escape being customized. If computers can be built to order, why not MP3 players? EverGreen, a company from Japan, began selling their customized MP3 player, the MP3DIY-256, on the direct sales website Shanghai Wenwu on July 6th. The retail price for the 256MB version is 4999 yen (approximately 350 RMB).