Mark Harmstone

Essentially it means "I've opened something that should be a file but isn't", which isn't very helpful. It looks like the program could do with being tested against more filesystems...

Could you give it a go on the latest version please? @TheGlitch76 - that's news to me, are you sure about that? There's nothing on https://support.microsoft.com/en-gb/help/140365/default-cluster-size-for-ntfs-fat-and-exfat, which says that Windows...

Have you tried doing as it says - running chkdsk and trying again?

Is this still an issue on today's version?

I don't think there's any technical reason why not. It's something I've considered, but it's undocumented and AFAIK nobody's reverse-engineered it to any great degree.

I suspect this is just Windows weirdness - I've seen it get confused about network shares even without btrfs installed.

Thanks. You're using device-mapper rather than raw block devices - do you know what `/dev/mapper/ArchiMedia` and `/dev/mapper/AM-2` map to?

> no volume guid is provided to the system That's not right - see the function `vol_query_unique_id`. If the driver didn't respond to the mountdev ioctls, mountmgr.sys wouldn't assign volumes...

Thanks, I'll try to reproduce. I think you're probably right given the comment, it's probably running out of stack space.

Thanks - I'll have a look at this when I get the chance.