Register Guidelines E-Books Search Today's Posts Mark Forums Read

Go Back   MobileRead Forums > E-Book Readers > Kobo Reader

Notices

Reply
 
Thread Tools Search this Thread
Old 04-05-2012, 12:35 AM   #1
Zimbu
Junior Member
Zimbu has a complete set of Star Wars action figures.Zimbu has a complete set of Star Wars action figures.Zimbu has a complete set of Star Wars action figures.
 
Posts: 5
Karma: 292
Join Date: Apr 2012
Device: Kobo, Kobo Touch
Kobo Touch Speed and Wi-Fi Compatibility

I'm thinking about upgrading to a Kobo Touch to replace my first generation Kobo eReader (the one that does Bluetooth only). I have two specific questions I was hoping someone could help answer for me that are a bit difficult to try out in a store:

1) Wireless Compatibility

My wireless network is using WPA2-Personal with WPA-TKIP/WPA2-AES encryption with a rather complex passphrase (63 ASCII characters, including a variety of special punctuation symbols such as @#$[]\;<>{}). I've had some difficulties with certain wireless devices (such as the PlayStation Portable and Nintendo DS) not being able to connect to the network using this complex key.

Can anyone verify for me that Kobo Touch is able to handle complex wireless passphrases properly?

2) Performance

I've been extremely happy with my first gen Kobo when reading standard novels, mostly purchased from the Kobo bookstore. However, I have several DRM-free ePubs purchased from O'Reilly that are rather complex, and the first gen Kobo simply chokes on them. It takes over 10 minutes to detect each of these ePubs, and opening them or changing chapters takes almost as long. The files open flawlessly on my PC and Galaxy Tab.

I saw in a thread here that there are a few hacks that can be done to simplify the CSS in the O'Reilly ePubs, but I'd rather not have to do anything more complicated than drop the ePub on my device, so I'm curious how good/bad the performance is. The Touch seems significantly faster than the original Kobo from playing with it in the store, but it's hard to tell how much better it is when looking at only the included samples.

How is the Kobo Touch at processing complex ePubs such as the ones from O'Reilly?

Thanks.
Zimbu is offline   Reply With Quote
Old 04-05-2012, 10:51 AM   #2
ottdmk
Addict
ottdmk ought to be getting tired of karma fortunes by now.ottdmk ought to be getting tired of karma fortunes by now.ottdmk ought to be getting tired of karma fortunes by now.ottdmk ought to be getting tired of karma fortunes by now.ottdmk ought to be getting tired of karma fortunes by now.ottdmk ought to be getting tired of karma fortunes by now.ottdmk ought to be getting tired of karma fortunes by now.ottdmk ought to be getting tired of karma fortunes by now.ottdmk ought to be getting tired of karma fortunes by now.ottdmk ought to be getting tired of karma fortunes by now.ottdmk ought to be getting tired of karma fortunes by now.
 
Posts: 384
Karma: 2496084
Join Date: Feb 2012
Location: Ottawa, Ontario, Canada
Device: Kobo Aura HD; Blackberry Playbook
Haven't tried such a long WPA2 passphrase myself (mine is only 13 characters: upper, lower, numerical, special) but mine works just fine.

As for complex epubs: After the .17 upgrade I ran into trouble with a really long epub (>2000 pages) but that's been the only thing so far.
ottdmk is offline   Reply With Quote
 
Advertisement
Old 04-06-2012, 01:55 AM   #3
Zimbu
Junior Member
Zimbu has a complete set of Star Wars action figures.Zimbu has a complete set of Star Wars action figures.Zimbu has a complete set of Star Wars action figures.
 
Posts: 5
Karma: 292
Join Date: Apr 2012
Device: Kobo, Kobo Touch
Thanks for your response ottdmk.

I ended up purchasing the Kobo Touch tonight. The Wireless Key was no problem (other than being a pain to type in), and the device connected to the network without any problems.

The O'Reilly books, on the other hand, do not perform well at all. I copied two O'Reilly ePubs to the device, and it took 23 minutes to process the two files. Once on the device, they could be opened and page turns were reasonably quick, but trying to navigate with the slider was ridiculous.

I ended up following the advice in this thread and converting the .MOBI file to .EPUB using Calibre, and the books in this format are actually quite good. Not an ideal solution, but works fairly well.

The Touch is a nice upgrade compared to the original Kobo. It's signficantly faster, and the screen is much easier to read.
Zimbu is offline   Reply With Quote
Old 04-06-2012, 07:10 PM   #4
Matth79
Zealot
Matth79 ought to be getting tired of karma fortunes by now.Matth79 ought to be getting tired of karma fortunes by now.Matth79 ought to be getting tired of karma fortunes by now.Matth79 ought to be getting tired of karma fortunes by now.Matth79 ought to be getting tired of karma fortunes by now.Matth79 ought to be getting tired of karma fortunes by now.Matth79 ought to be getting tired of karma fortunes by now.Matth79 ought to be getting tired of karma fortunes by now.Matth79 ought to be getting tired of karma fortunes by now.Matth79 ought to be getting tired of karma fortunes by now.Matth79 ought to be getting tired of karma fortunes by now.
 
Posts: 103
Karma: 500044
Join Date: Jan 2012
Device: Kobo Touch
Yes, have WPA2 personal AES (I found that allowing TKIP/AES was unreliable) and a max length, fully randomized key.
https://www.grc.com/passwords.htm
And my immediate advice would be NOOOO! It is such a pain to type (and I thought I'd only ever have to type it once, doing a cut & paste from a text file subsequently).

The "password haystacks" article is also interesting, in showing how the total search space expands - NOT the actual strength of a password.
Looking at the analysis, a 12 character, upper/lower/numeric/symbol mix looks pretty robust (estimated 1.74 centuries vs massive cracking array).
Using just lowercase alpha, it still takes only 17 characters to reach that level.

So long as the key is not a common dictionary word or common non-dictionary key, then the faster attacks are neutralized - since the most classic is using a rainbow table of common SSID names hashed with common passphases, it also helps if the SSID is not the default, or a common one like "home".

Using just lowercase (far easier to enter on a device that does not have a real keyboard) seems wrong, but a random sentence from a random page in a book, would not be that bad - best to collapse all spaces, as it some devices handle spaces incorrectly.
Matth79 is offline   Reply With Quote
Old 04-07-2012, 12:52 PM   #5
The Terminator
Retired
The Terminator ought to be getting tired of karma fortunes by now.The Terminator ought to be getting tired of karma fortunes by now.The Terminator ought to be getting tired of karma fortunes by now.The Terminator ought to be getting tired of karma fortunes by now.The Terminator ought to be getting tired of karma fortunes by now.The Terminator ought to be getting tired of karma fortunes by now.The Terminator ought to be getting tired of karma fortunes by now.The Terminator ought to be getting tired of karma fortunes by now.The Terminator ought to be getting tired of karma fortunes by now.The Terminator ought to be getting tired of karma fortunes by now.The Terminator ought to be getting tired of karma fortunes by now.
 
Posts: 2,552
Karma: 37638420
Join Date: Nov 2010
Location: Vancouver Island Canada
Device: Kobo Touch, Optimus One (2.3), Nexus 7 (4.2)
Quote:
Originally Posted by Zimbu View Post

I ended up following the advice in this thread and converting the .MOBI file to .EPUB using Calibre, and the books in this format are actually quite good. Not an ideal solution, but works fairly well.
Do you mean the books were in MOBI?
The Terminator is offline   Reply With Quote
Old 04-07-2012, 11:55 PM   #6
Zimbu
Junior Member
Zimbu has a complete set of Star Wars action figures.Zimbu has a complete set of Star Wars action figures.Zimbu has a complete set of Star Wars action figures.
 
Posts: 5
Karma: 292
Join Date: Apr 2012
Device: Kobo, Kobo Touch
Quote:
Originally Posted by The Terminator View Post
Do you mean the books were in MOBI?
The books are available from O'Reilly in a variety of formats, including ePub, Mobi, PDF, and a couple others, all DRM-free. The .EPUB files from O'Reilly are overly complex, and the Kobo chokes trying to process them.

However, if you take the .MOBI files (which are also available when you purchase a book) and convert them into .EPUB via Calibre, the resulting converted .EPUB file is much simpler than the .EPUB you can download from O'Reilly and the Kobo is able to process it much more quickly.

There are a few minor variations in formatting that I've noticed between the original .EPUB and the .EPUB that is generated from the .MOBI, but nothing so far that makes the converted book significantly worse.

It's a bit annoying having to download and convert the books when the .EPUB provided should work, but it's better than not being able to read them at all, or waiting 10 minutes to load the original .EPUB.
Zimbu is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
K 2 TTS on K Touch or way to slightly speed up default male voice? broodingstorm Kindle Developer's Corner 0 02-15-2012 02:11 PM
Kindle 3, Nook Simple Touch, Kobo Touch and Libra Pro Touch jbcohen Which one should I buy? 4 06-18-2011 08:58 PM
KOBO compatibility with Project Gutenberg ebooks craigaross Introduce Yourself 5 04-16-2011 09:19 AM
Question about kindle screen - can i touch it? (Speed reading) d47 Amazon Kindle 25 10-19-2010 04:00 PM
new single-entry TOC for Kobo compatibility Stinger Calibre 3 05-29-2010 02:16 AM


All times are GMT -4. The time now is 03:51 AM.


MobileRead.com is a privately owned, operated and funded community.