I've found this thread while looking for a solution to the deprecated "flatten/unflatten" arguments. Thanks, great info! However, I can't figure out what to do if my plain text (not RTF!) SLA text contains non-ASCII characters. Suppose I want to add, say, the Greek Omega letter to my text. I tried to base64-encode Unicode strings, but when I mount the resulting DMG, the SLA text displays gibberish in place of non-Latin chars. As the input to the base64 encoding function, I've tried: UTF8 UTF8 with a 3-byte BOM UTF16 UTF16 with a 2-byte BOM None of the above works. Is there a way to do what I want, or the whole thing doesn't even support Unicode?