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Old 04-19-2012, 03:07 PM   #1
Slider1960
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Huge MobiFile can't be read

Hi All not been here for a will as I have been a happy bunny, but I would like to ask advice help on this matter.

I use a rather old school Bookeen Cybook 3 which I have kept running on the Mobi firmware. the main reason for this is that when I tried to use Epub the files seemed to be too big for the reader to load - I'm told because of embedded fonts. By too large, anything over about 1.5Mb is a problem in that it caused the reader to crash. http://www.mobileread.com/forums/showthread.php?t=84941

All has been fine since then, convert the wretched epub to mobi using Calibre, load and read.

Until today I bought a book (someone lent me the paperback and said it was a must read), but the epub comes out at over 3Mb and after conversion the mobi is even bigger - over 4Mb.

Are there any gurus out there with ideas how to make these file sizes more managable? could there be a problem with the original download which itself was nearly 4Mb. Would anyone like to have a look at the files and see what is going on? I will make them available on a private ftp site to any volunteers.

Thanks in advance.
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Old 04-19-2012, 04:11 PM   #2
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You could rename the .ePub to .zip unzip all files and re-compile the book with Mobipocket Creator.. (Choose "High Compression.")
To compile the book, simply double-click the .opf file after you installed Mobipocket Creator.
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Old 04-19-2012, 06:43 PM   #3
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Thanks I'll try it tomorrow
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Old 04-20-2012, 04:48 AM   #4
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Thanks so much! I've never even looked into these files before. but that certainly got me going. It turns out in the real book there are a few pages of photos, these were all pretty big for jpgs and ther cover image embedded in the fiel was 500k alone! I recompiled the book without the images, and inserted a cover later using Calibre and now the book is 400K and reads fine on my Cybook :-)
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