[LadyStardust]

Hi there,

I've had a quick scoot around the internet and it seems that the information may be contained in the EXIF data but that it's not easily readable by "Joe Public" - and is indeed primarily there for access by Canon's repair centres.

Also, the forums where this is discussed do say that if you can access it (perhaps by using a hex reader piece of software), the numerical sequencing does not always appear to be consistent.

In a nutshell - it's not looking good...