I think so, certain brands are so good they just become synonimous with the product and almost become a generic term for a product.
When you think get a cut you look for a Band-Aid (not a bandage), when you need to clean your ears you get a Qtip (not a cotton swab), when you want to skate around the block you look for your RollerBlades (not your in-line skates), and when you want to quench your thirst you reach for a Coke (not a cola). The reason these brands are thought of in this way is because they are the best, they are quality and they represent the entire product.
The same thing's happening for MP3 players. When people think of an MP3 player they think of an iPod.
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