Re: is my drive defect - request for comments

"Thomas Schmitt" <[email protected]> wrote:

> I wrote
> > > -raw96r does not yield sectors which can be
> > > read by the READ command.
>
> Joerg Schilling wrote:
> > This claim is of course wrong.
>
> MMC-5 says:
> "6.15.3 Command Processing
>  The block size for the READ (10) command shall be 2048 bytes.
>  If the block size of a requested sector is not 2048, the Drive shall:
>  1. Terminate the command with CHECK CONDITION status,
>  2. Set sense bytes SK/ASC/ASCQ to ILLEGAL REQUEST/ILLEGAL MODE FOR THIS TRACK,
> "
>
> man cdrecord says:
>        -raw96r
>               Select Set RAW writing mode with 2352 byte sectors plus 96 bytes
>
> No 2048 bytes. No READ (10).
> This matches my own observations with write
> capacity (is higher) and block device read(2)
> (fails with i/o error).

Looks like you need to learn about CD writing basics.....

cdrecord knows how to write any possible sector type in -raw96r mode.

BTW: writing in -raw96r is a trick to circumvent problems from the 
non-cooperative Linux hald (*) and -raw96 should be used with all Lite-ON
drives to circumvent firmware bugs found in all Lite-ON drives.

If you do not know how -raw96r works, then I would guess that your software 
does not support to write in this mode.....

*) hald on Linux must be called harmfull software as it interrupts the write 
process and makes media unusable. This is because it starts reading from 
incompletely written CD.

Jörg

-- 
 EMail:[email protected] (home) Jörg Schilling D-13353 Berlin
       [email protected]                (uni)  
       [email protected] (work) Blog: http://schily.blogspot.com/
 URL:  http://cdrecord.berlios.de/private/ ftp://ftp.berlios.de/pub/schily


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