This isn't a CPU speed issue, it is if anything to do with hardware this is a main memory size issue. Look in the
E-book Reader Matrix for this kind of information, but in general ebook processing does not require a very fast processor.
There is so far as I know no limit on the total size of an ePub for the PRS-300, but on all Sony Readers (except perhaps the PRS-900) there is a limit on the size of each individual HTML/XHTML file that make up the ebook. These are typically chapters (one per XHTML file) and
EPUB Best Practices Guide By the Adobe Digital Publishing Team Version 1.0.3 August 2008 says:
Quote:
|
For Adobe Digital Editions, you will need to keep chapters under 300k in size when uncompressed and under 100k when compressed. Images must not be larger than 10MB when uncompressed. If these limits are not adhered to, EPUB files will not work on supported mobile devices including the SONYŽ Reader Digital Book.
|
If your ePub is DRM-free then running it through Calibre (ePub -> ePub conversion) with the default target will fix these kinds of issues. However, I don't think it currently handles embedded fonts. If you already have a Kindle version, try MOBI -> ePub via Calibre.