Sony PRS-505 slow whilst changing Chapters. XHTML too large?

pato1 · 06-08-2009, 03:55 AM

Hi,

I have a problem of speed/flowing of pages/chapters. I am converting some novels into epub-format and am splitting the xhtml-files into chapters. Problem is that some books have large or no chapters.
I read that files have to be under 300KB. I have XHTML-files that are 150-250KB.

Some books that I have generated are really very slow on the Sony PRS-505. (20-30 secs when changing chapters). Could this be the problem? I am also using a pagemap.xml file for the pagenumbering (I am looking to put that info into the ncx at a later time).

Should I be looking at generating much smaller .XHTML files?

Cheers for any help

Pat

pepak · 06-08-2009, 05:43 AM

Slow movement between chapters is normal with Adobe's implementation of EPUB, and one of the reasons why I prefer LRF.

pato1 · 06-08-2009, 08:41 AM

I have to stick with EPUB because it is the customer's specification.
By "Adobe's implementation" do you mean the pagemap.xml? I read a reply from kovidgoyal that style=pagebreak:always helps speeding the "TOC" display and wondered if periodically entering it in a few of the <p> tags after every few pages would speed the display. Would replacing the pagemap.xml with additional info in the ncx speed it up?
Cheers for any help or comments.
Pat

dynabook · 06-08-2009, 03:05 PM

HOWTO: Improve performance on calibre generated ePUBs

Search for this post by =X=

Has to do with removing #HREFs from the TOC. This may help.

06-08-2009, 03:55 AM	#1
pato1 Junior Member Posts: 4 Karma: 10 Join Date: Jun 2009 Location: Berlin, Germany Device: iPad	Sony PRS-505 slow whilst changing Chapters. XHTML too large? Hi, I have a problem of speed/flowing of pages/chapters. I am converting some novels into epub-format and am splitting the xhtml-files into chapters. Problem is that some books have large or no chapters. I read that files have to be under 300KB. I have XHTML-files that are 150-250KB. Some books that I have generated are really very slow on the Sony PRS-505. (20-30 secs when changing chapters). Could this be the problem? I am also using a pagemap.xml file for the pagenumbering (I am looking to put that info into the ncx at a later time). Should I be looking at generating much smaller .XHTML files? Cheers for any help Pat

06-08-2009, 03:05 PM	#4
dynabook Techno-geek Posts: 225 Karma: 1116651 Join Date: Nov 2006 Location: Mississippi, USA Device: PRS-T1 (Black), PRS-T3S (Black), Kobo Aura ONE	Check this thread out to see if it helps HOWTO: Improve performance on calibre generated ePUBs Search for this post by =X= Has to do with removing #HREFs from the TOC. This may help.

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06-08-2009, 05:43 AM	#2
pepak Guru Posts: 610 Karma: 4150 Join Date: Mar 2008 Device: Sony Reader PRS-T3, Kobo Libra H2O	Slow movement between chapters is normal with Adobe's implementation of EPUB, and one of the reasons why I prefer LRF.

06-08-2009, 08:41 AM	#3
pato1 Junior Member Posts: 4 Karma: 10 Join Date: Jun 2009 Location: Berlin, Germany Device: iPad	I have to stick with EPUB because it is the customer's specification. By "Adobe's implementation" do you mean the pagemap.xml? I read a reply from kovidgoyal that style=pagebreak:always helps speeding the "TOC" display and wondered if periodically entering it in a few of the <p> tags after every few pages would speed the display. Would replacing the pagemap.xml with additional info in the ncx speed it up? Cheers for any help or comments. Pat

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