Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Go with a defferent recorder.

I also had problems with converting file formats. Don't buy if you are planning to burn recordings onto CDs. Also, apparently the headphone jack is designed to only work with one headphone instead of both. Kind of annoying. And the quality of the recordings in NOT very good at all. Perhaps due to comparison (Sony IC Recorder ICD-PX720 - MUCH better product for about the same price). True, this Olympus recorder is one of the only "cheaper" digital recorders I could find that works with Windows 7, but hopefully that will be resolved soon enough. Oh, and be careful about ordering through BuyAccessories. If you have a return problem, they are not very easy to work with.