looking for a fast way to dump a dvd to a file on my hdd

[Xin LI]

On Thu, Feb 3, 2011 at 3:07 AM, Gary Jennejohn
<gljennjohn at googlemail.com> wrote:
> On Wed, 2 Feb 2011 22:02:11 +0100
> Ulrich Spörlein <uqs at spoerlein.net> wrote:
>
>> On Wed, 02.02.2011 at 12:04:58 -0800, Xin LI wrote:
>> > On 02/02/11 11:54, Alexander Best wrote:
>> > > so far dd(1) with a bs=2048 finished after:
>> > >
>> > > 4676648960 bytes transferred in 1639.108763 secs (2853166 bytes/sec)
>> >
>> > Just curious - how will recoverdisk(1) perform?  I haven't tried it
>> > myself but it uses much larger window which could be faster.
>>
>> +1 for recoverdisk. I hacked it so that it will also cope with media
>> that has weird sectorsizes like 2352 bytes. It is awesome for reading
>> optical media now, thanks to retries, large read requests and the
>> ability to save progress (so you can try the failing sectors in another
>> drive).
>>
>
> And are these hacks available to the general public somewhere?

I think recoverdisk already support using DIOCGSECTORSIZE to obtain
underlying sector size and I don't think it's really needed to hack
it?  I think, maybe uqs@ mean one need to "hack" the CAM subsystem to
make the system believe that DVD have sectorsize of 2352 bytes for
some special purpose backup?

Cheers,
-- 
Xin LI <delphij at delphij.net> http://www.delphij.net