Unfortunately I don't have an eBookwise-1150 to test it out. Anyone 
care to try it and let me know how it works for them?

I've downloaded and read a few books on your site, and I just checked a couple more. They work fine on the Rocket. I've found that some Rocket books can't be put into the 1500 for reasons I don't understand; however, these download into the 1500 just fine and so presumably will work in them. I can't easily get at the 1500 right now, but if there's a problem I'll let you know.