How to read raw bytes from an SD card?

Question

On a Windows PC, is there a way to read the raw bytes from an SD card attached trough a USB card reader? The SD card gets written from an embedded system using no file system at all, so I can't use standard file access routines. This is similar to what the unix dd utility does, but I need to integrate this into a .NET application.

Answer 1

I'm not really sure whether this is helpful or not, but assuming that even an unformatted disk gets a physical drive number in the Win32 Device Namespace (which I think it must), you might be able to extend the code shown here to identify the drive number and read raw bytes from anywhere on the device.