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Re: [Bug-ddrescue] Ddrescue suggestion
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From: |
John Bokma |
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Subject: |
Re: [Bug-ddrescue] Ddrescue suggestion |
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Date: |
Thu, 29 Jun 2017 19:37:53 -0500 |
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User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 |
On 6/29/17 7:28 PM, John Bokma wrote:
>
>
> On 6/29/17 7:21 PM, Abhoth __ wrote:
>> OK, I have read the manual a bit more in-depth than I did the last time.
>>
>> I am trying to make the read and rescue speeds as slow as possible. The
>> device I am trying to rescue data from is a CD-R.
>
> If you can use dvdisaster; this is often recommended over ddrescue for
> recovering CDs/DVDs.
To add: ddrescue might try to read additional sectors at the end which
on each read will contain different data. Even if you limit the size of
the image to the one given in the ISO image you might end up with one
sector (2K) which has random data. Probably an off-by-one error in some
disc burning software.
John