Originally Posted by kovidgoyal
If 0.9.6 did not work with that file open a bug report and attach the file, I'd be interested in taking a look at it.
Okay -- shoulda looked at the Tools first. It's been a while since the Adobe-relevant plugin to my library situation was updated in Tools, but it is now at v0.1.9 (Tools 5.4, November 6 2012) versus v 0.1.7 (Tools 5.31, September).
I just updated the plugins from Tools 5.4, restarted book download process from scratch, and the book came into Calibre just fine, including the "Chapter 36" graphic which I lost when i implemented my crude "home brewed" solution (i.e. removing the offfending "corrupt" graphic file with 7Zip).