PRS-505 bug or eBookLib bug?

porkupan · 10-07-2007, 08:55 PM

Looks like there is a problem with loading the files into the new Reader (PRS-505). Happened to me twice, happened to some other guys over at the Russian Forum.

The bug doesn't totally brick the Reader, it just hangs it up. What happens is that after you copy some book[s] into the Sony Reader and then unplug the PRS-505 from the USB (having first pushed the "Eject button" in eBookLib) you try to open a book file, and the Reader hangs up with a message "Formatting..." down at the bottom of the screen. Nothing can be done to get the Reader out of this state except a Soft Reset. Plugging into the USB doesn't appear to help. After the reset the Reader comes to the menu, and when you try to open another book or the same book, you get hung with the same message.

It seems that the only way to recover from this situation is by resetting the Reader, and then connecting to the PC before it comes all the way to the menu. The Reader then can be successfully accessed via the USB (both eBookLib and Mass Storage Device interface), the books can be removed, the cache cleaned. I ended up removing all the LRF and PDF files from my Reader to get it back, it may be possible to remove only some of the files.

The problem appears to happen when loading either LRF or PDF files. It does seem to be somewhat repeatable, which raises some questions about Sony's QA. The bigger the loaded file, the higher the chances of hanging up.

Anyone has had similar experience?

kovidgoyal · 10-07-2007, 09:50 PM

Almost certainly because the LRF file in question is too complex for the readers rendering software. You only need to delete the offending file to recover.

porkupan · 10-07-2007, 10:16 PM

Don't think so. Well, at least not totally right. This same file would read fine after you recovered and re-loaded the file. So, the premise is correct - this seems to happen with more complex files, but the file itself is not always the issue. I am afraid we get some data corruption, perhaps in the process of repaginating (indexing) the file, which is done by eBookLib. I wonder if when the "Eject button" is pressed, the eBookLib kills the repaginating thread while it's in the middle of doing its job.

kovidgoyal · 10-07-2007, 10:44 PM

Hmm i'll have to wait until i get my 505 to say more.

10-07-2007, 08:55 PM	#1
porkupan Fanatic Posts: 556 Karma: 1057213 Join Date: Sep 2006 Location: North Eastern U.S. Device: Sony Reader	PRS-505 bug or eBookLib bug? Looks like there is a problem with loading the files into the new Reader (PRS-505). Happened to me twice, happened to some other guys over at the Russian Forum. The bug doesn't totally brick the Reader, it just hangs it up. What happens is that after you copy some book[s] into the Sony Reader and then unplug the PRS-505 from the USB (having first pushed the "Eject button" in eBookLib) you try to open a book file, and the Reader hangs up with a message "Formatting..." down at the bottom of the screen. Nothing can be done to get the Reader out of this state except a Soft Reset. Plugging into the USB doesn't appear to help. After the reset the Reader comes to the menu, and when you try to open another book or the same book, you get hung with the same message. It seems that the only way to recover from this situation is by resetting the Reader, and then connecting to the PC before it comes all the way to the menu. The Reader then can be successfully accessed via the USB (both eBookLib and Mass Storage Device interface), the books can be removed, the cache cleaned. I ended up removing all the LRF and PDF files from my Reader to get it back, it may be possible to remove only some of the files. The problem appears to happen when loading either LRF or PDF files. It does seem to be somewhat repeatable, which raises some questions about Sony's QA. The bigger the loaded file, the higher the chances of hanging up. Anyone has had similar experience?

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10-07-2007, 09:50 PM	#2
kovidgoyal creator of calibre Posts: 42,965 Karma: 20900374 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Almost certainly because the LRF file in question is too complex for the readers rendering software. You only need to delete the offending file to recover.

10-07-2007, 10:16 PM	#3
porkupan Fanatic Posts: 556 Karma: 1057213 Join Date: Sep 2006 Location: North Eastern U.S. Device: Sony Reader	Don't think so. Well, at least not totally right. This same file would read fine after you recovered and re-loaded the file. So, the premise is correct - this seems to happen with more complex files, but the file itself is not always the issue. I am afraid we get some data corruption, perhaps in the process of repaginating (indexing) the file, which is done by eBookLib. I wonder if when the "Eject button" is pressed, the eBookLib kills the repaginating thread while it's in the middle of doing its job.

10-07-2007, 10:44 PM	#4
kovidgoyal creator of calibre Posts: 42,965 Karma: 20900374 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Hmm i'll have to wait until i get my 505 to say more.

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