I'm using two different SanDisk Extreme SDHC cards that are rated at 30MB/s.
Actual read speed obtained via HDX18's built-in card reader (aka Digital Media Reader) is reported at 1.19 MB/s.
That's the throughput calculated by Win 7 for file-copies to an internal hard drive. Same uncomfortably slow performance on both cards. There are no other indications of trouble or errors .... just 1MB/s performance causing pain every time files are retrieved using the card-reader.
Searches I briefly ran didn't turn up specifications on expected speed, but 1MB/s certainly doesn't seem right. Any suggestions?