How to read raw data from CD-ROM?

[ali8]

Using CD / DVD ROM, I would like to read the raw data. I do know that the physical data are coded into (possibly) non-zero-return code, and then using Reed-Solomen Interleaved code, and had some synchronization data in between the data bits.

While I do not expect that I would be able, using software alone, to get all of this, but at least I'd like to get as low level as possible.

My aim is research-related. I would need to place the head at specific location and would like to read tha data there.

Any ideas?

 

[jumanji]

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I only understand the word RAW in your post. Rest all Greek and Latin.

 

[ali8]

Thanks, I will give it a try. The problem is that I do not find a technical documentation for the software, or at least what they mean by 'raw data'.

 

[jumanji]

You may rummage through the site for all available documentation. You may also read the help file in the program. There is a lot said about many things there.

 

[ali8]

I looked and there is no physical layer details.

 

[jumanji]

OK, I shall then give it a pass.

 

[carwiz]

You might see if a Disk Editor will give you what you're looking for. The image below shows a clip of the one I have used. You have to work with off-sets but that sounds like what you're doing or wanting to do. I just placed an old catalog CD in the drive and selected it for open. I've never tried a DVD but it should work as well. The CD information is in the left pane.

 

[LMiller7]

That isn't the raw data shown in post #7 but I think that is the closest you are going to get. I don't think the raw data is accessible to software.

 

[carwiz]

Perhaps forensic software is what the OP is looking for but it's not cheap. The above example is freeware.