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mbovenka · 03-15-2017, 11:27 AM

I think you're going past the maximum of 64K PDB Records in a MOBI file: https://wiki.mobileread.com/wiki/MOBI#PalmDOC_Header.

Looking at that, an uncompressed MOBI file can't be larger than 4K x 64K = 256M. I'm not sure what Calibre does; if it uses Huffman compression, it should fit, but perhaps it doesn't.

Edit: Ninja-ed :-)

03-15-2017, 11:27 AM	#4
mbovenka Wizard Posts: 2,082 Karma: 14079267 Join Date: Oct 2007 Location: Almere, The Netherlands Device: Kobo Sage	I think you're going past the maximum of 64K PDB Records in a MOBI file: https://wiki.mobileread.com/wiki/MOBI#PalmDOC_Header. Looking at that, an uncompressed MOBI file can't be larger than 4K x 64K = 256M. I'm not sure what Calibre does; if it uses Huffman compression, it should fit, but perhaps it doesn't. Edit: Ninja-ed :-)