After an 8 GB USB flash drive from Toshiba, not only on Sony Micro Hi-Fi CMT-FX205 but also to various PCs, always works only after several attempts, I was looking for something "more compatible". 8GB MICROVAULT MIDI USB2 Sony works fast, without any problem to play and record from MP2 of the PC, notebook, on USB stick for my og Sony Hi-Fi system. The only problem is the annoying LED is read or written while data. If it is all around bright and you do not always have to look in the direction of the stick or hear with your eyes closed sleep music I can bear it and have kept it, because otherwise my above claims in full.