- Oct 12, 2003
I haven' had any problems with my Fiio X1, however my Fiio M3 had compatability issue when I used a 32GB Transcend class 10 card in it. It would make occasional skipping/ buzzing noises. After I switched to a Sandisk class 10 card it works fine. I only use mp3 files. Any compatability issues with the card you are using are likely to be magnified when using lossless files. I suggest that those who have issues try using a fast Sandisk card in the player and see if that solves the problem.