> Right. qemu doesn't support compression on writes, so you can't > create a new disk (with no content) with compression enabled. You can > only convert an existing disk with content, and I believe writes to > such a disk are either entirely disabled or create uncompressed > content. OK thanks that makes sense now - and it does look like you can write to a compressed image, but new writes are uncompressed. Cheers for all your help! Paul
