My first purchase at Cowon, I wanted to test this brand after hearing many positive reviews, including the famous J3 model but still quite expensive. So I folded the i9. 16GB is more than enough to store some of my cd flac. Well it lacks a slot for inserting a Micro SD card but I will not be choosy, especially in view of the quality of sound (but do not forget, during the startup, choose a region outside EU to avoid clamping of sound)