Troubleshooting If Kindle does not support big mobi file very well?

[recoco]

I have some big mobi ebooks converted by Calibre.The biggest one is about 15MB.When I was reading these big mobi files, I had often encountered the problem of kindle crash.When crashed, I had to do a hard reset.I had not distinguished this is because of big file or the mobi file type.But I'm really sure the smaller mobi/pdf ebooks work fine.My kindle is kindle 4.I had saw that it has only 128M RAM.really?
Does anyone have the same problem?Thanks!

[DiapDealer]

Sounds like a problem with the indexing service getting stuck.

[Blossom]

Originally Posted by recoco

I have some big mobi ebooks converted by Calibre.The biggest one is about 15MB.When I was reading these big mobi files, I had often encountered the problem of kindle crash.When crashed, I had to do a hard reset.I had not distinguished this is because of big file or the mobi file type.But I'm really sure the smaller mobi/pdf ebooks work fine.My kindle is kindle 4.I had saw that it has only 128M RAM.really?
Does anyone have the same problem?Thanks!

I had my K4 crash for the first time the other day. I wasn't reading any big book just a little Harlequin. I had to do a hard reset. My only conclusion is that I hadn't restarted the Kindle in a long time and it ran out of memory. I'm currently reading a 3MB Omnibus which I added last night but so far no issues but most of my books are under 900kb.

So if it's not a indexing issue it could be out of memory like you guessed.

[Koko]

Sounds like the problem is in the html, since it freezes while reading the book.
<table> inside <table> and <thead>, <tbody> <tfooter> will make the kindle freeze (see https://www.mobileread.com/forums/sho...d.php?t=148747)
The device does only read the pages you are currently reading so memory is problably not an issue. The largest book I have on my DX are one where the html is 11 MB and the PRC is 78 MB. I have several other large PRC's on the device (54, 50, 48, 25, 16 MB).
I always remove unessasary tags from the html, since when used in exsess may make the page turning slower. Some large html's may be reduced to more than half the size by doing so.

[Blossom]

Originally Posted by Koko

Sounds like the problem is in the html, since it freezes while reading the book.
<table> inside <table> and <thead>, <tbody> <tfooter> will make the kindle freeze (see https://www.mobileread.com/forums/sho...d.php?t=148747)
The device does only read the pages you are currently reading so memory is problably not an issue. The largest book I have on my DX are one where the html is 11 MB and the PRC is 78 MB. I have several other large PRC's on the device (54, 50, 48, 25, 16 MB).
I always remove unessasary tags from the html, since when used in exsess may make the page turning slower. Some large html's may be reduced to more than half the size by doing so.

Thanks for the heads up. I will remember when cleaning a book to remove these although this was not the reason for my freeze issue it's something I did not know and all the books I get from Smashwords it wouldn't surprise me if I ran across it someday.

My Freeze issue is still a mystery.

[recoco]

@Koko, Thanks!Looks like it is really a html parsing problem.Some books works fine without any problem.But some specific books cause out of memory.Kindle freeze/crash and auto reboot.I'll try other mobi book converter.

[tomsem]

Originally Posted by recoco

I have some big mobi ebooks converted by Calibre.The biggest one is about 15MB.When I was reading these big mobi files, I had often encountered the problem of kindle crash.When crashed, I had to do a hard reset.I had not distinguished this is because of big file or the mobi file type.But I'm really sure the smaller mobi/pdf ebooks work fine.My kindle is kindle 4.I had saw that it has only 128M RAM.really?
Does anyone have the same problem?Thanks!

What are you converting from? If from ePub, try using kindlegen (and then either run kindlestrip or send via Personal Documents service to remove the source archive that kindlegen tacks on). Calibre can generate ugly CSS, maybe that is part of the problem.

I've opened mobi files that were far larger than that even on my K2 so I don't think size in and of itself is the issue.

[recoco]

Originally Posted by tomsem

Calibre can generate ugly CSS, maybe that is part of the problem.

totally agree!I'll try kindlegen.

[recoco]

Sorry for my mistake.I found the book causes Kindle rebooting was created by another coverter tool today.In indeed, all mobi books generated by calibre work fine
Calibre is great and I love it!