I had plenty of time to check customer reviews on this card reader. On the French site, a single person, who is delighted with his purchase. On the English site against a majority of online gives only a single star, complaining that the studs in the drive were deformed from the first use, making it unusable. It is true that in my Sandisk card reader for example, rails 15 mm guide map, allowing easy insertion. Here the tracks are only 5 mm and must therefore proceed very carefully when it inserts the card, and do not force it! Whereby I experimented with three CF cards of three different brands that I inserted and removed a dozen times without any problems. That said, I think this player should rather be used in troubleshooting, eg vacationing since its small size allows it to fit in the smallest of camera bags.