EZ Reader Pro and compression formats

ProDigit · 04-14-2012, 10:53 AM

Hi,
Just posting my findings here, kind of like a thread for my own memory,but also for those seeking to play around with the EZ Reader Pro, or are just interested in the results.

I have an HTML file, and compress it with 7z.
The results are posted below of:
- Archive Format, Compression method, Dictionary size, Word Size.

The following settings work:
- Zip, (any), deflate, 32kB, (any)
- Zip, (any), deflate64, 64kB, (any)

With following settings the archive opens, but the HTML within the ZIP can't be opened:
- Zip, (any), bzip2, (any)
- Zip, (any), LZMA, (any), (any)
- Zip, (any), PPMd, (any), (any)

The following file formats are not supported:
- bzip2, tar, gz, wim, 7z, xz
Renaming them to zip does not work.

Compressing with Winrar gives the following results:
- Zip: Any .zip works; archive can be opened, HTML can be read.
- Rar: Any RAR archive opens, but HTML can not be extracted.
Renaming RAR files to zip does not work.

Hyperlinks and superscript (sup) are not supported within HTML documents.

theducks · 04-15-2012, 01:51 PM

Why worry?

4G SDcard has 3900 (EPUB) books with covers: 50% capacity used

4G SD Cards are $9 at Fry's, cheaper online when you include in another order (postage will get you otherwise).

ProDigit · 04-15-2012, 02:08 PM

no one worries; these are just facts and findings of the Astak EzReader Pro's capabilities.
It's perhaps part of my search to find the 'perfect' format of compression for ebooks on this device.

JSWolf · 04-15-2012, 02:21 PM

Quote:

Originally Posted by ProDigit

no one worries; these are just facts and findings of the Astak EzReader Pro's capabilities.
It's perhaps part of my search to find the 'perfect' format of compression for ebooks on this device.

Question... Why is it you are so worried about compressing your eBooks as small as possible?

ProDigit · 04-15-2012, 02:36 PM

Research!
To know as much as I can, to find solutions, to make the best epub I can make!
I hope there's nothing wrong with that?

I take pleasure in saving a few kB in my file, and have e-readers display pages 0.01ms faster than others :P

By nature I'm a technology freak, I kick on knowing the mechanics and technics behind everything. Now also ebooks. It's a deficiency in my character I suppose :-)

Greg Anos · 04-15-2012, 03:27 PM

original firmware?

ProDigit · 04-16-2012, 01:41 AM

Lin 2.6.21.7
FW: V2.02ASTAK.09.12.01

DaleDe · 04-17-2012, 09:02 PM

This biggest problem I have with zip archives is that a bookmark won't work. It will not remember where you are inside the book inside the zip. So I use folders to do grouping instead but cbz would have been nice.

Dale

04-14-2012, 10:53 AM	#1
ProDigit Karmaniac Posts: 2,553 Karma: 11499146 Join Date: Oct 2008 Location: Miami FL Device: PRS-505, Jetbook, + Mini, +Color, Astak Ez Reader Pro, PPW1, Aura H2O	EZ Reader Pro and compression formats Hi, Just posting my findings here, kind of like a thread for my own memory,but also for those seeking to play around with the EZ Reader Pro, or are just interested in the results. I have an HTML file, and compress it with 7z. The results are posted below of: - Archive Format, Compression method, Dictionary size, Word Size. The following settings work: - Zip, (any), deflate, 32kB, (any) - Zip, (any), deflate64, 64kB, (any) With following settings the archive opens, but the HTML within the ZIP can't be opened: - Zip, (any), bzip2, (any) - Zip, (any), LZMA, (any), (any) - Zip, (any), PPMd, (any), (any) The following file formats are not supported: - bzip2, tar, gz, wim, 7z, xz Renaming them to zip does not work. Compressing with Winrar gives the following results: - Zip: Any .zip works; archive can be opened, HTML can be read. - Rar: Any RAR archive opens, but HTML can not be extracted. Renaming RAR files to zip does not work. Hyperlinks and superscript (sup) are not supported within HTML documents.

04-15-2012, 02:36 PM	#5
ProDigit Karmaniac Posts: 2,553 Karma: 11499146 Join Date: Oct 2008 Location: Miami FL Device: PRS-505, Jetbook, + Mini, +Color, Astak Ez Reader Pro, PPW1, Aura H2O	Research! To know as much as I can, to find solutions, to make the best epub I can make! I hope there's nothing wrong with that? I take pleasure in saving a few kB in my file, and have e-readers display pages 0.01ms faster than others :P By nature I'm a technology freak, I kick on knowing the mechanics and technics behind everything. Now also ebooks. It's a deficiency in my character I suppose :-) Last edited by ProDigit; 04-15-2012 at 02:39 PM.

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04-15-2012, 01:51 PM	#2
theducks Well trained by Cats Posts: 30,454 Karma: 58055868 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	Why worry? 4G SDcard has 3900 (EPUB) books with covers: 50% capacity used 4G SD Cards are $9 at Fry's, cheaper online when you include in another order (postage will get you otherwise).

04-15-2012, 02:08 PM	#3
ProDigit Karmaniac Posts: 2,553 Karma: 11499146 Join Date: Oct 2008 Location: Miami FL Device: PRS-505, Jetbook, + Mini, +Color, Astak Ez Reader Pro, PPW1, Aura H2O	no one worries; these are just facts and findings of the Astak EzReader Pro's capabilities. It's perhaps part of my search to find the 'perfect' format of compression for ebooks on this device.

04-15-2012, 03:27 PM	#6
Greg Anos Grand Sorcerer Posts: 11,391 Karma: 35440406 Join Date: Jan 2008 Device: Pocketbook	original firmware?

04-16-2012, 01:41 AM	#7
ProDigit Karmaniac Posts: 2,553 Karma: 11499146 Join Date: Oct 2008 Location: Miami FL Device: PRS-505, Jetbook, + Mini, +Color, Astak Ez Reader Pro, PPW1, Aura H2O	Lin 2.6.21.7 FW: V2.02ASTAK.09.12.01

04-17-2012, 09:02 PM	#8
DaleDe Grand Sorcerer Posts: 11,470 Karma: 13095790 Join Date: Aug 2007 Location: Grass Valley, CA Device: EB 1150, EZ Reader, Literati, iPad 2 & Air 2, iPhone 7	This biggest problem I have with zip archives is that a bookmark won't work. It will not remember where you are inside the book inside the zip. So I use folders to do grouping instead but cbz would have been nice. Dale