Quote:
Originally Posted by rcentros
GBM (above) has nearly 1,400 books on 905 MBs on his NST.
|
Analyzing my Calibre library, the most critical item is images followed by embedded fonts. Quite a few of my newer epubs came with 1000x1500 to 1706x2560 cover images with a lower compression ratio which are just a titch larger than the 510x680 or 501x751 images that were popular a few years back. Looking at one recent purchase from Amazon, the cover image is 940KB -- looking inside the archive, the file shrank by a massive 714 bytes when compressed. Looking at Mario Batali's
America Farm to Table, it contain 226MB of images and 2MB for the rest of the book. Not only is a picture worth a thousand words, it takes up the space of 10,000 words.
As for the embedded fonts? A unnecessary evil. As is setting font-families to reflect fonts found on a Windows or Macintosh PC. When is the last time you used an eInk reader with Times New Roman as a factory font? If nothing else, the embedded fonts are not optimized for an eInk display and look craptastic while the font-family CSS prevents switching fonts.
And yes, since I am interested in food and cooking, I have quite a few epubs in the 100+ MB range and some in the 200+ MB range. Looking at those larger epubs, I could legitimately (and ridiculously) claim that with 5 ebooks, I ran out of sideload space on a Nook Glow 3.
Eliminating the foodie library from my list, I still came up with an average ebook size of 1.1MB. Using that number, I would be able to fit ~875 epubs in the available sideload space. Not bad but not good in this age of ever expanding book sizes.