Have you checked you only have the necessary files in the ebookHave you checked the image files are optimized as much as possible. Many GIFs are not compressed as much as they can be. In JPEG there are too parameters which affect the compression amounts. Try fiddling with this in paint programs
If you have lots of HTML files, try removing the white space etc. Use an HTML compressor on a copy of your files, compile that
You can run one ebook from another using code like
<A HREF="##RUN('{app}\book2.exe')">Book 2</A>
This assumes that book2.exe is your 2nd ebook, and both EXes are in the same folder on the CD-ROM
