Thread: Adobe Digital Editions 1.8 preview now available
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Old 09-01-2011, 06:40 PM   #29
ATimson
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Quote:
Originally Posted by JSWolf View Post
Doesn't matter. Most readers will not be using this version of ADE and the only way to keep compatible is not to use any new features. So really, you'll be causing an issue by using features that don't work with ADE 1.7.2.
Since JPEG 2000 isn't defined as a OPS Core Media Type, ebook authors who use JPEG 2000-formatted images need to be including a fallback to have a valid book. If they don't, then they don't care about having a valid ePub, and are probably a lost cause who don't care about being incompatible with some devices.
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