From: Rainer Wiesenfarth <wiesenfarth@zeiss.de>
Subject: RE: Large File Support
Date: Wed, 9 Jun 1999 15:50:00

Grissom, Ed wrote:
> [...]
> - TIFF magic number changes from "42" to "84" (double 42 ??)
 
I'd prefer 66 (= 0x42) or 258 (a base 64 noted number 42)
to keep the meaning behind it

> [...]
> A tag is now made up of 16 bytes,  the last field is 8 bytes long, and
> either contains the data (if it will fit in 8 bytes), or an 8 byte pointer
> to the location of the data.
 
If we do changes, our goal should be not to change it again
two years later. So maybe the following changes should also
be done:
 
- the Count field of an entry should also be 8 bytes. No one
  will use tiles or strips with more than 4 GB data today,
  but who knows about tomorrow?
 
- the Tag field may be expanded to be 4 bytes to have plenty
  of tags left for future enhancements.

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