I've been using this in my R-09 for the past month and I've never had a problem. Only problem I had with it was that it got unstable after trying to format it on the old firmware (it's an 8 gig card). I sorta got it working but I eventually exchanged it and told them it was "defective" and I was able to talk him into giving me a new card (he said he'd do it "just this once"). I recorded the headliners at the Uptown Waterloo Jazz Festival this year and never once had a problem. Bit depth/sample rate was 24/44.1