Strange issue with media.xml

pepak · 09-08-2008, 09:02 AM

I am writing myself an application for creating collections, and I have enountered a strange problem:

I need to fill in the 'date' attribute of <xs1:text> tag:

Code:

<xs1:text ... date="Wed, 03 Sep 2008 16:57:34 GMT" />

The date used is, curiously enough, file creation date rather than file modification date, but I can deal with that. The strange thing is that as far as file management utilities and Windows API in general, the file for the above example has a creation date of "03 Sep 2008 17:57:34" - which would be more or less correct since I am in a GMT+1 timezone. But: How does the Reader know that my timezone is +1? It can't be getting that information from its filesystem since it uses FAT and FAT does not store timezone.

I need to know because if I keep the date at the value I read from the filesystem, the Reader will think the file got changed and will rebuild the cache for it. I need it to accept the modifications I did to media.xml, and that means I need to set the correct date - which is different than the date in filesystem.

Any ideas?

igorsk · 09-08-2008, 09:17 AM

There is a packet eBook Library sends to the Reader when it connects. It contains the PC's current time and timezone. Reader stores it in a local file.

pepak · 09-08-2008, 09:42 AM

Ah. That would explain how the reader knew about the timezone - I did run the Library once.

OK, I can handle that.

09-08-2008, 09:02 AM	#1
pepak Addict Posts: 297 Karma: 600 Join Date: Mar 2008 Device: Sony Reader PRS-505	Strange issue with media.xml I am writing myself an application for creating collections, and I have enountered a strange problem: I need to fill in the 'date' attribute of <xs1:text> tag: Code: <xs1:text ... date="Wed, 03 Sep 2008 16:57:34 GMT" /> The date used is, curiously enough, file creation date rather than file modification date, but I can deal with that. The strange thing is that as far as file management utilities and Windows API in general, the file for the above example has a creation date of "03 Sep 2008 17:57:34" - which would be more or less correct since I am in a GMT+1 timezone. But: How does the Reader know that my timezone is +1? It can't be getting that information from its filesystem since it uses FAT and FAT does not store timezone. I need to know because if I keep the date at the value I read from the filesystem, the Reader will think the file got changed and will rebuild the cache for it. I need it to accept the modifications I did to media.xml, and that means I need to set the correct date - which is different than the date in filesystem. Any ideas?

09-08-2008, 09:17 AM	#2
igorsk Wizard Posts: 2,401 Karma: 11026 Join Date: Sep 2006 Location: Belgium Device: PRS-500/505/700, Kindle, Cybook Gen3, Words Gear	There is a packet eBook Library sends to the Reader when it connects. It contains the PC's current time and timezone. Reader stores it in a local file. __________________ Yet another reverse engineering blog Like to chat? Join #mobileread

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Calibre keeps saying database of books is corrupted. Media.xml file	seajewel	Calibre	3	07-07-2009 07:19 PM
Creating media.xml manually	pepak	Reader Troubleshooting	5	11-28-2008 10:26 AM
Ebook Library refusing to load on screen when new media.xml file required	seajewel	Calibre	0	06-29-2008 07:46 PM
Cooper blog: News media is lost about digital media, too	Steve Jordan	Deals, Freebies, and Resources	0	11-05-2007 10:06 AM
Strange issue the reader fixed by itself.	Cpt. Tim	Reader Troubleshooting	0	05-15-2007 03:39 PM

09-08-2008, 09:42 AM	#3
pepak Addict Posts: 297 Karma: 600 Join Date: Mar 2008 Device: Sony Reader PRS-505	Ah. That would explain how the reader knew about the timezone - I did run the Library once. OK, I can handle that.