[Dvdrtools-users] Re: Questions about dvdrecording -- "Record" v. "Rewrite" and different "standards"

[Bryan J. Smith]

On Mon, 2002-08-12 at 07:08, Sean wrote:
> DVD-R/RW drives will not burn DVD-RAM media or DVD+R/RW media.

I think the poor approach of the interchanging use of the word "burn" to
mean both "[sequential] recording" and "[random access] rewriting," when
the two are completely different, adds to the confusion.

A "summary" for those "new here" ...

"Record" aka "Burn"

  - Sequential
  - Pre-master images (usually ISO9660 filesystem)
  - Uses "SCSI generic" (/dev/sg)
    [ "direct" access under Windows ]
  - Uses CDR/DVDRTools

  - DVD-R (Standard) used by Pioneer DVD-R and DVD-RW
          and 3rd gen Panasonic/Toshiba DVD-RAM
  - DVD+R (Independent) used by 2nd gen Sony/Philips/HP DVD+RW

"Rewrite" or "Packet Write"

  - Random Access
  - Created on-the-fly (usually UDF filesystem)
  - Uses "SCSI disk" (/dev/sd)
    [ "drive letter" under Windows ]
  - Uses kernel driver and direct filesystem

  - DVD-RAM (Standard, Archive) used by Panasonic/Toshiba DVD-RAM
  - DVD-RW (Standard, Consumer) used by Pioneer DVD-RW
  - DVD+RW (Independent, Consumer) used by Sony/Philips/HP DVD+RW

-- Bryan

-- 
Bryan J. Smith, E.I.  address@hidden   http://www.TheBS.org
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