Instruct: Classify Amazon reviews into positive or negative sentiment
Query: need better quality control

this *could* be a great music player. works with linux, supports open formats, audiophile features (speed control, advanced playlist features, advanced EQ), etc. those are the "pros." "cons" include: why is FM radio reception an option and not standard? also, why not have a speed control that's independent of pitch change? the technology for this has been around for at least 10 years now...my main complaint about this unit is that i've gotten two bad ones from J&R; returning the second one tomorrow. the first one crapped out after about 2 weeks, and the second one refuses to power up after only two days.trekstor tech support answers emails promptly enough, but their advice doesn't go much beyond suggestions to update the firmware (although i told them that both of my vibezs shipped with the latest firmware already installed).i'm going to try one more time, because i think this could be the best alternative to the iPod that's out there. wish me luck!