Closed
Description
The current spec doesn't say anything about whether Unicode characters are allowed in various string fields (most notably the volume name), and if so, whether UTF-8 encoding is required or whether other encodings are allowed.
Also, it's not clear whether whitespace, newlines, tabs, or control characters including backspaces, NULs, EOFs, BELLs, etc should be allowed in string fields.
Some fields clearly specify alphanumeric values, and we could probably expand this language to other fields, or put some general language about all strings in the document.