Originally Posted by John123
OMG, what a can of worms. It would seem there are no definitive standards, then. With soooo many e-readers how could there be and where will it end? I just saw the first 8k telly on the news this morning!!!!
Cheers, job done.
There are standards however, some eReaders don't fully follow them and some eReaders extend them. For example the standard does not define BMP files as standard however, many Windows eReaders support them since they are based on Windows API stuff which automatically has BMP support.
It is a can of worms but it is a small can. 90% of the stuff is ok in almost all readers but there are a few Gotchas. The basis for ePub is HTML files and thus many eReaders use code from browsers as a starting point and end up with browser behaviors instead of ePub behaviors from time to time. The de facto standard reader is from Adobe, called Adobe Digital Editions, as they offer an API for sale to eBook Reader makers and have a DRM scheme that is also used by many customers including Public Libraries. Please check our wiki for terms you don't understand.