Stephen Harris ([info]sweh) wrote,
@ 2008-02-10 21:22:00
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More cybook
So the device is actually quite usable in bed. There's not quite the contrast you get on normal paper (the background is greyer; maybe like early 90s cheap recycled paper) and in exactly the wrong spot you can get reflection off the display. But mostly it's fine. I found myself spending more time with both hands on the pad while laying on my side, but there was no stress and it worked out quite well.

The slow page refresh and flashing between pages isn't optimal. I'm a relatively fast reader and the slow page turns (which happen more frequently than with dead trees) and apparent control key issues I mentioned in my previous entry can be slightly annoying. A slower reader might not notice. A very fast reader, such as Tori, might not like it. Her speed would drop because she'd be spending more relative time waiting for the page refresh.

And now what may be a bad bug. I loaded 161 ebooks onto the 2Gb SD card. I had these in a hierarchical structure, so the book I'm reading is /...path.to.SD.../eBooks/Weber,David/Saganami/Shadow_of_Saganami.prc which appears OK in the library (however, also see earlier post about scalability of the library interface). BUT... when the machine powers down, on reboot it forgets what page I was on. Once or twice it remembered, but most frequently it started again at the front page.

For that bug and the slowness of rebooting with so many books and the library interface issue, I've actually stopped using the SD card and copied a subset of the books into the internal flash. Not ideal, but it seems to solve both problems. I'm a "everything" person; I like to have my whole "stuff" with me, so a large iPod for all of my CDs; a large memory card for all of my eBooks. Fortunately I think I'm less likely to want to pick a book at random than a CD, so I might be able to survive with just the internal flash.

One thing I've not been able to work out... when to charge this thing. About the only time I don't want to have the device close to me as a book is when I'm at work. In theory overnight, but I want it bedside to read in bed, and I don't want to have power cables trailing around in my bedroom. So maybe I'll actually charge it at work once a week (or however often it needs a charge).

Tomorrow is my first day of using it while commuting.



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[info]rbradakis
2008-02-12 01:22 am UTC (link)
How fast is the SD card you're using for this? And how fast a card does the Cybook support?

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[info]sweh
2008-02-12 03:12 am UTC (link)
Unknown. It doesn't support SDHC so I guess it doesn't support super fast cards. Speed, typically, shouldn't be that important for an ebook reader.

FWIW, the 2Gb card they provided is unbranded and labeled

SD Elite Pro
2Gb
Memory Card
3.3V
94110-925.A00LF 20456871

The name suggests a Kingston part, but it's not labeled Kingston.

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[info]rbradakis
2008-02-12 06:28 pm UTC (link)
Well, there are a couple of different speeds for SD cards, too.

But now that I look at the speed differences, I don't think it shoud be all that relevant.

Kingston 1G - Up to 5MB per seconds read rate, up to 1.5MB seconds write rate
vs.
Kingston 2G - Elite Pro provides super-fast 50x speed, an 8.2 MB per second read rate, and a 7.7 MB per second write

I just bought those two, the 1G for my Palm T3, the 2G for my Garmin Nuvi 350. I grabbed the largest size that each device could handle, and the fastest speed for that size that I could find. The 1G was also pretty much the only speed that I could find. And I think I realized that 5MB/s is faster than a page turn should require. Unless it reloads the entire file each time or some such stupidity - and still, how big is an ebook? I've not got many over 1MB.

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[info]sweh
2008-02-12 06:36 pm UTC (link)
Ah, no. The speed of the page refresh is most likely due to the eInk technology. It's slow and requires a two step process (set screen to black, remove uneeded ink).

The problem I have with SD is that it results in too many books for the library interface to easily manage and that it seems to fail to remember what page I was on after a power cycle.

161 books takes up around 136Mb of space.

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