Format SD Card with Chipworkx

When I’m using a formated Micro SD Card, everything works fine. Using an unformated one and trying to format it, it fails.
I found the following topic:
which informs me, that it is impossible to format a SD card with .NET MF. Is this true? No way of formatting an SD card with .NET MF?
Thank you for your help!

Format should work fine. If you see problems, please report to netmf codeplex.