Flash - Change the CDATA end character?

Since I want to store raw binary streams in CDATA Sections of XML files, the 3 character CDEnd code might mistakenly match my binary.

Any way to change the CDEnd code for Flash? I'd like it 10 char just for reliability.

From stackoverflow

• I don't think it's possible. Maybe base64 encode the binary instead?

  Jenko : Yeah, thought as much! Its asking too much from the Flash Platform.

  David Hanak : Actually, it's got nothing to do with flash, it's pure XML syntax.