Moved to InDesign EPUB forum.
You've given us nothing to go on.
What version of InDesign? What Mac O/S? Fixed layout or reflowable? Is it this one file or all.
If it's reproducible, copy the crash report to pastebin.com and post a link here. DO NOT POST THE CRASH REPORT HERE.
Try trashing your prefs
No luck there. I was able to export up to 7/8 of the entire file without any problem before. Is it maxing out some how? I have exported smaller books with no problem as well.
Sometimes when you export to PDF, a single graphic which is corrupted causes a problem.
I'm sure it must be similar for exporting EPUB. See if you can isolate which page is causing the problem using the "divide and conquer" method. Export the first half and the second half separately. If only one half crashes, divide that in two and see which half causes the crash. Try to isolate it down to one page, the one graphic if you can.
Steve and Bob,
Thank you so much for your help!
I had instinctively divided it down to the last 20 or so pages, so finding the corrupted image was a snap. Amazing! Thought it was length or memory, so you were right on the money with the corrupted image idea! Yes, it works for EPUB as well.
Have a great day!