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Old 02-08-2011, 05:45 PM   #1
JohnnyRocks
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Load Times for LRF vs Epub

Is it just my imagination or do LRF formatted books take MUCH longer to load in the ereader (and also in fact, in Calibre...where LRF files take forever to "parse"), than EPubs?

If that is, indeed, the case, then what would be the advantage to LRF vs converting all LRF files to Epub? In general, is there any advantage to LRF over Epub?
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Old 02-08-2011, 08:29 PM   #2
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When you first load an LRF file on to your reader (or change the font size), the reader has to "paginate" the document. This process does take awhile, but should only have to be done once for each font size. Once the LRF is "paginated" it should open very quickly.

When I was using my Sony 505, I would convert all my documents to LRF--I really prefer the look of fully justified text. The older Sony readers won't display ePubs fully justified.

Now that I have my 650, I don't convert to LRF any more, as the 650 will display ePubs fully justified.

I personally do like the way LRF numbers pages better, though. I like having one screen=one page. It's not that big of an issue for me though, so I just stick with ePubs.

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Old 02-08-2011, 08:49 PM   #3
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Quote:
Originally Posted by JohnnyRocks View Post
If that is, indeed, the case, then what would be the advantage to LRF vs converting all LRF files to Epub? In general, is there any advantage to LRF over Epub?
If you're a Calibre user there is one very good reason why you might move to EPUB, namely that LRF format is considered 'yesterday's news' and Calibre's creator has stated that he has no interest in any further development/fixing of LRF specifics. That wouldn't stop one of the other Calibre developers doing LRF work if they felt like it, but don't hold your breath.
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Old 02-09-2011, 04:22 AM   #4
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EPUB doesn't need pagination, so it's near instant.

Advantage of LRF is, basically, having header/footer.
Also, on older readers (pre 900) "justify" doesn't work in EPUBs.
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Old 02-09-2011, 03:10 PM   #5
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I convert all epubs into lrf as the lrf font sizes are closer to one another as the epub font sizes and I thus work around the big size jump from XS-S-M font sizes. The lrf format loads as fast as everything else, but take a little more file space than the epub. Still with 390 books on my PRS-350 there is 1.2 GB left.
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Old 02-09-2011, 07:39 PM   #6
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Use Reader Library to put your LRF onto your Reader. That way they will be paginated and load right away.
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