2007.01.25 10:14 "Re: [Tiff] Old TIFF format", by Gerben Vos
After this there are no TIFF tags or IFD's, it appears to be binary data. what I read the compression was not applied to the tags From but to the tag values. It seems odd that the last IFD marker
This is a weird file, yes. Looking at the end of the file may also help, maybe there's an IFD-like structure there. It looks to me like some compressed data starts at offset 8.
I'd be happy to take a look at one of your files if you send one to me privately. Can't guarantee much, however.