iopiop, can you run Spb Benchmark on the 558 and show us the charts?
I just can't believe the device would be so slow with CF and SD cards. According to your charts, a SanDisk SD card (about the slowest card on the market) is running as fast or faster on a 3900(very old model) as a Lexar SD card (one of the fastest SD cards) on the 558. That's terrible.