There should be no way to create that fault just through coming up with an unexpected sequence of characters. In fact BLOBs don't hold characters at all. They are sequences of octets. The individual octets are not understood as characters, just binary patterns. Run <code>pragma integrity_check</code> on the original database, not the one copied to Windows. Make sure that the corruption is in the original. If it is, then stop using that database file, even though it is not returning an error when you try to use it in your code. Are you sure you are using the API calls correctly ? Are you sure you are handling memory correctly ?