Instruct: Classify a review into positive or negative sentiment.
Query: Terrible product

First it doesn't work with Win2000. You need Media Player 10.Then there is no support, their customer service is ZERO,never return my email and their phone line is ALWAYS busyIt does work with Windows XP, but transfering one album takesabout 50 minutes, that's right, not a typo, 50 minutes! Don'tknow why, it states as USB2.0, I guess it works in USB1.1 only.You cannot create folders directly on the unit, you have to create folders in your local PC and then copy/pasteThe 5/6GB version's battery is external, but the 20GB batteryis built-in, you cannot use backup battery, you cannot changethe battery yourself, given their customer service is soterrible, I don't know what you are going to do should you needto replace the battery