Re: plextor px-708uf: cannot get disk type

[Thomas J Magliery PhD <magliery@csb.yale.edu>]

Andy, what that last error meant is that I was specifying the device the 
wrong way (it is /dev/scd0 for me).  Anyway, here is the actual result:

Version with dinfo[32+4]
==============
[magliery@reganlinux dvd+rw-tools-5.16.4.8.5]$ ./test /dev/scd0
:-( unable to READ DISK INFORMATION: Input/output error
==============

Version with dinfo[32]
==============
[magliery@reganlinux dvd+rw-tools-5.16.4.8.5]$ ./test2 /dev/scd0
00 22 00 01 01 01 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 23 05 40 
00 00 00 00 00 00 00 00
==============

What does *this* mean?

Thanks,
Tom


Andy Polyakov wrote:

> > I am sure that if growisofs would check all relevant information
> > returned by the driver, it would fail too.
> >    
>
> Thomas! Could you run attached program with your /dev/dvd as argument?
> Then remove +4 from dinfo declaration, recompile and re-run. To compile
> save it in dvd+rw-tools source catalog and compile with g++. A.
>
> 8<--------8<--------8<--------8<--------8<--------8<--------8<--------
> #include "transport.hxx"
>
> int main(int argc,char *argv[])
> { Scsi_Command cmd;
>  unsigned char dinfo[32+4];
>  int i,err;
>
>    cmd.associate(argv[1]);
>
>    cmd[0] = 0x51;
>    cmd[8] = sizeof(dinfo);
>    cmd[9] = 0;
>    if (err=cmd.transport (READ,dinfo,sizeof(dinfo)))
>        sperror ("READ DISK INFORMATION",err);
>    else
>        for(i=0;i<sizeof(dinfo);i++) printf("%02x ",dinfo[i]);
>    printf("\n");
> }