Hardcore firmware modification

vbimport

#1

i have a question, think codeguys can answer it best…

is it possible to disable CD works within a firmware, so the drive cannot detect/read/write cds or modify the firmware, so it cannot read +/-r dvd-media?


#2

i`ll take a crack at that…
it is possible… also it is possible for a resistor to burn out in the laser
e.g. there are 2 pots for adjusting a dvd\cd laser 1 for dvd the other for cd…
it is possible for 1 to be out or even burnt out.

i think that might answer your question


#3

i bet buying a cheapass cd-rom (do they even sell these) would be cheaper;p


#4

if someone could modify a BY01 firmware, so it cannot do anything with CDs, it would be great.


#5

Though I question your reasons for doing this, you could mess up the EEPROM checksum and the drive would refuse to recognize any media.


#6

one can modify writing strategies/speeds, add support for unsupported media, enable auto-bitsetting, crossflash drives to completely other models (401s -> 811s), repair checksums, delete eeproms learned media data and many other things, that are very useful. and you say it is a problem to disable cd working? i don’t really believe that… :rolleyes:


#7

@chok0
Please tell me why you would want to do this :confused:. Any patch takes a considerable amount of work. While it might sound easy, it seldom is. Before undertaking any patch, we have to consider how many will benefit from the result…


#8

just to play a little with the drive…


#9

I think thats far away for a good reason.

I dunno if someone wants to disable the features the drive profides that sounds in my opinion somewhat crazy…


#10

Prolly quicker to stick a label on the drive. “No CD’s Allowed!”


#11

Come on now, be more creative than that. Are you up to the challenge ? You want to play ? Ok… How about rigging your DVD burner so that the motor spins in reverse - here’s the tricky part - it spins in correct direction to read disc ID, but spins in reverse to write to the disc, then spins correctly to update TOC… Come on, rise to the challenge :slight_smile: :slight_smile: :slight_smile:


#12

There’s probably a quicker and more safe method by patching at the driver level in Windows XP, to lock out CD detection and route to a drive not ready error… At least this method does not compromise the integrity of your writer, and does not involve even touching your firmware or EEPROM.


#13

but if i disable cd detection in the windows-drivers, all drives will be affected. i want only my dvdrw to cannot detect cds. i want it to be drive-internally disabled.
come on, u really don’t know for what i reason i want to have this patched one…?!


#14

I am interesting to know why you wanna disable
the CD function of the drive…

:rolleyes: :confused: :o :stuck_out_tongue:


#15

Well usually he is supposed to reply: “I’d tell you but I’d have to kill you…” :bigsmile:

So now I guess some programmer needs to get to work:

Introducing, The CD Disabler V1.0… I can’t possibly think why the hell someone would need such a feature.


#16

ok, if noone is going to help me, or just say how much work it could be, this thread can be closed.

LOL, I’d tell you but I’d have to kill you…


#17

Haha… OK, So, Tell me why now…!
And I will sitting here waiting for you to kill…!