Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Check your soundcard compatibility

Your ability to use this software may depend on your soundcard. The previous reviewer does not say what card is in his system. I have an earlier version of this product. When first installed, it worked perfectly. Then my card (Soundblaster Live) died, and I replaced it with a generic cheap card, at which point Audio Cleaning Lab and various other programs either locked up or otherwise failed to work. I replaced the no-name card with an Audigy and everything works again, including Audio Cleaning Lab. I'm not trying to sell Creative products, but not all sound cards have truly Soundblaster compliant drivers. Maybe Magix need to test more widely than they do, but when it does work, ACL is very useful.