For those interested in weak sectors

vbimport

#1

... you can get a sector scrambler (with source code and
a sample weak sector) at spath.cjb.net/scrambler.zip.

With this toy you can see the repetitive patterns in
weak sectors and study your favorite amplfication tool,
and with the source code you can easily write your own
amplification method.

Have fun guys :slight_smile:


#2

Thanks.

btw, I checked out your parent page. You play bridge?

I wrote a little extension of this to print out the numbers to a file as well, I assume you are putting the code into the open domain, right?

Maybe NOW I’ll stop bugging you about weak sectors…


#3

That’s great. :stuck_out_tongue:


#4

I’ve been thinking and thinking about weak sectors lately and this troubles me a lot…

If weak sectors can exist in 2048 byte sector form as in max.iso, then this would mean that you could make a file that could not be burned properly in say Nero’s mastering option!! :mad:

What I’m trying to say is that is it possible that a file like a picture or a program or even a sound file, having those repetitive patterns, and that it will not be able to burn properly if you include the file when you are mastering a CD using:

  • Nero
  • Easy CD creator
  • WinOnCD
  • Etc…

If only someone with some spare time make such a file - (preferably a proper file that is more realistic than max.iso, e.g. a picture) so that we can test it.


#5

yay!


#6

Originally posted by spath
… you can get a sector scrambler (with source code and
a sample weak sector)

Cool! Thanx.

:cool:


#7

> btw, I checked out your parent page. You play
> bridge?

No, it’s just a fake front page.

> I wrote a little extension of this to print out the
> numbers to a file as well, I assume you are
> putting the code into the open domain, right?

Sure, you can do anything you want with that code.

> Maybe NOW I’ll stop bugging you about weak
> sectors…

:slight_smile:


#8

> Maybe NOW I’ll stop bugging you about weak
> sectors…

:slight_smile:

Well, it turns out that I won’t :wink: … Sorry…

Check out this thread.


#9

here’s a efm test iso with all possible 16 bit repetitions to play with

http://bc_____________________.bei.t-online.de/efmgame.zip

thanks again, spath


#10

@blackcheck

Have you ever tried your tool with a LiteOn burner (which records weak sectors perfectly)?


#11

yup, my liteon is able to write a few of the patterns :wink:
about 20% i guess…

i don’t think there is a writer that can burn my iso yet.


#12

If this is so, we probably can expect a SafeDisc version, which again introduces new weak sector patterns (like SDv2.51 did).
Maybe 3 sheeps are needed then for EFM on the elby page …

Anyway, you have created a great tool, that brings every burner to its limit ;).