I have a strange little mSATA drive (32 GB Emphase G5RM3G032-M) I bought from eBay that seems to have some problems. The problems are severe enough that it occasionally freaks out ReadSpeed. I finally got a capture card, and the first run I captured with it couldn't have been better. The previous runs where I noticed this problem were much more subtle. The resetting begins at the 50% test.