The data is still a Deflate stream, it's just that the deflate stream will be a series of literal blocks. The idea behind "uncompressed" is that you can just co

The data is still a Deflate stream, it's just that the deflate stream will be a series of literal blocks. The idea behind "uncompressed" is that you can just copy the data into memory, and level = 0 does not achieve that (you still have to decode the deflate stream).