On Sat, Sep 27, 2003 at 08:15:01PM +0200, David Fokkema wrote: > On Sat, 2003-09-27 at 19:42, Bijan Soleymani wrote: > > On Sat, Sep 27, 2003 at 04:21:09PM +0200, Benedict Verheyen wrote: > > > Op vr 26-09-2003, om 02:17 schreef Carla Schroder: > > > > If it's Office 2000 or older, a simple disk copy will work. If it's XP, I > > > > don't know. If an ordinary disk copy does not work, try the dd command, as > > > > it does a literal byte-by-byte copy. This should take care of any > > > > odd/hidden/sekkrit bits. > > > > > > Not always. I tried dd once to make copy of a game i have and a program > > > (both legitimate copies of mine :) ) and after dd'ing and cdrecording > > > them, the copies where no good. > > > They were also for a win platform so there might be some parameters you > > > have to add for that to cdrecord, i'm not sure. But i've always wondered > > > why it worked with cdclone and not with the linux tools. > > > > I remember that some CDs of windows software (especially games) used > > certain tricks to make sure you didn't copy them (the game could detect > > if they were running off a copied cd). And you had to patch your > > executable to be able to run them. > > Using readcd I copied a game which had a copy protection under windows. > If you sequentially read the whole disc (as cd copy programs do) you > would notice that certain sectors had medium faults. Every windows > program my friends had tried aborted with tons of error messages. Readcd > on linux also aborted. However, telling readcd to ignore errors and only > retry three times I ripped an iso off the disc. Burning that to cd was > of course no problem and then I had an identical copy. Well, not > completely identical, since I didn't have the medium errors.
And I think that some games might have checked for the medium errors or something like that :) Bijan -- Bijan Soleymani <[EMAIL PROTECTED]> http://www.crasseux.com
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